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Automation performance degradation in Excel 2007

 
 
John Austin
Guest
Posts: n/a
 
      14th Dec 2007
I have a VB6 app that creates about 100 populated Excel spreadsheets. I have
installed Office 2007 and the performance of the application has degraded
significantly.

On the same PC, extracting data from the same database, the creation process
takes 50 seconds with Office 2003, but 165 seconds with Excel 2007.

What is happening here? Why is Excel 2007 so slow? The application creates
several hundred of these spreadsheets each week and takes over an hour to
complete with Excel 2003. If Excel 2007 were used it would take all day!

--
John Austin
 
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Jialiang Ge [MSFT]
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Posts: n/a
 
      17th Dec 2007
Hello John,

From your post, my understanding on this issue is: you wonder why the
automation of Excel 2007 looks slower than that of Excel 2003, and how to
improve its performance. If I'm off base, please feel free to let me know.

According to the MSDN article
http://msdn2.microsoft.com/en-us/library/aa730921.aspx (Improving
Performance in Excel 2007), the performance issue is caused by the
increased limits in Excel 2007. The Excel 2007 "Big Grid" increases the
maximum number of rows per worksheet from 65536 to over 1 million, and the
number of columns from 256 (IV) to 16384 (XFD) (See
http://msdn2.microsoft.com/en-us/lib...007excelPerf_B
igGridIncreasedLimitsExcel). When we create large worksheets, it is easy to
build them in a way that causes them to calculate slowly. However, by using
a straightforward set of techniques, we can speed up most slow-calculating
worksheets by a factor of 10 or 100:
http://msdn2.microsoft.com/en-us/lib...007excelPerf_M
akingWorkbooksCalculateFaster (Excel 2007 Performance Improvements)
http://msdn2.microsoft.com/en-us/lib...007excelPerf_F
indingPrioritizingCalculationBottlenecks (Finding and Prioritizing
Calculation Bottlenecks)
http://msdn2.microsoft.com/en-us/lib...007excelperf_E
xcelPerformanceImprovements (Excel 2007 Performance Improvements)
http://msdn2.microsoft.com/en-us/lib...007excelperf_T
ipsOptimizingBottlenecks (Tips for Optimizing Bottlenecks)

For instance, we could utilize the new feature of Excel 2007:
multi-threaded calculation to improve the calculation speed, or temporarily
set the calculation mode as "Manual" so that the formulas are only
recalculated when you request it. You can also apply these techniques as
you design and create worksheets to ensure that they calculate quickly.

The Excel development team has been spending a lot of time tuning Excel
2007's calculation performance to make it as fast as possible. (See:
http://blogs.msdn.com/excel/archive/...28/540939.aspx Help us make
Excel 2007 faster¡*). Here are a few more posts about Excel performance
from Excel team blog:
http://blogs.msdn.com/excel/archive/...03/488822.aspx Multi-threaded
calculation in Excel, or "how calculation can become much faster in Excel
12"
http://blogs.msdn.com/excel/archive/...ce-new-whitepa
per-available.aspx Excel Performance - New Whitepaper Available
http://blogs.msdn.com/excel/archive/...26/474258.aspx Some other
numbers ...

Please try the above techniques according to your specific situation, and
let me know if they can help you improve the performance. For any other
concerns or questions, please feel free to let me know.

Regards,
Jialiang Ge ((E-Mail Removed), remove 'online.')
Microsoft Online Community Support

==================================================
For MSDN subscribers whose posts are left unanswered, please check this
document: http://blogs.msdn.com/msdnts/pages/postingAlias.aspx

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ications. If you are using Outlook Express/Windows Mail, please make sure
you clear the check box "Tools/Options/Read: Get 300 headers at a time" to
see your reply promptly.

Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response from the community or a Microsoft Support
Engineer within 1 business day is acceptable. Please note that each follow
up response may take approximately 2 business days as the support
professional working with you may need further investigation to reach the
most efficient resolution. The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions or complex
project analysis and dump analysis issues. Issues of this nature are best
handled working with a dedicated Microsoft Support Engineer by contacting
Microsoft Customer Support Services (CSS) at
http://msdn.microsoft.com/subscripti...t/default.aspx.
==================================================
This posting is provided "AS IS" with no warranties, and confers no rights.

 
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John Austin
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Posts: n/a
 
      17th Dec 2007
I will certainly review the articles, however, automatic calculation is
already turned off and is only turned on at the end just before saving the
file. The problem seems to be the actual insertion of the data via OLE
automation. I will look at the articles however and get baqck to you.

--
John Austin


"Jialiang Ge [MSFT]" wrote:

> Hello John,
>
> From your post, my understanding on this issue is: you wonder why the
> automation of Excel 2007 looks slower than that of Excel 2003, and how to
> improve its performance. If I'm off base, please feel free to let me know.
>
> According to the MSDN article
> http://msdn2.microsoft.com/en-us/library/aa730921.aspx (Improving
> Performance in Excel 2007), the performance issue is caused by the
> increased limits in Excel 2007. The Excel 2007 "Big Grid" increases the
> maximum number of rows per worksheet from 65536 to over 1 million, and the
> number of columns from 256 (IV) to 16384 (XFD) (See
> http://msdn2.microsoft.com/en-us/lib...007excelPerf_B
> igGridIncreasedLimitsExcel). When we create large worksheets, it is easy to
> build them in a way that causes them to calculate slowly. However, by using
> a straightforward set of techniques, we can speed up most slow-calculating
> worksheets by a factor of 10 or 100:
> http://msdn2.microsoft.com/en-us/lib...007excelPerf_M
> akingWorkbooksCalculateFaster (Excel 2007 Performance Improvements)
> http://msdn2.microsoft.com/en-us/lib...007excelPerf_F
> indingPrioritizingCalculationBottlenecks (Finding and Prioritizing
> Calculation Bottlenecks)
> http://msdn2.microsoft.com/en-us/lib...007excelperf_E
> xcelPerformanceImprovements (Excel 2007 Performance Improvements)
> http://msdn2.microsoft.com/en-us/lib...007excelperf_T
> ipsOptimizingBottlenecks (Tips for Optimizing Bottlenecks)
>
> For instance, we could utilize the new feature of Excel 2007:
> multi-threaded calculation to improve the calculation speed, or temporarily
> set the calculation mode as "Manual" so that the formulas are only
> recalculated when you request it. You can also apply these techniques as
> you design and create worksheets to ensure that they calculate quickly.
>
> The Excel development team has been spending a lot of time tuning Excel
> 2007's calculation performance to make it as fast as possible. (See:
> http://blogs.msdn.com/excel/archive/...28/540939.aspx Help us make
> Excel 2007 faster¡Â*). Here are a few more posts about Excel performance
> from Excel team blog:
> http://blogs.msdn.com/excel/archive/...03/488822.aspx Multi-threaded
> calculation in Excel, or "how calculation can become much faster in Excel
> 12"
> http://blogs.msdn.com/excel/archive/...ce-new-whitepa
> per-available.aspx Excel Performance - New Whitepaper Available
> http://blogs.msdn.com/excel/archive/...26/474258.aspx Some other
> numbers ...
>
> Please try the above techniques according to your specific situation, and
> let me know if they can help you improve the performance. For any other
> concerns or questions, please feel free to let me know.
>
> Regards,
> Jialiang Ge ((E-Mail Removed), remove 'online.')
> Microsoft Online Community Support
>
> ==================================================
> For MSDN subscribers whose posts are left unanswered, please check this
> document: http://blogs.msdn.com/msdnts/pages/postingAlias.aspx
>
> Get notification to my posts through email? Please refer to
> http://msdn.microsoft.com/subscripti...ult.aspx#notif
> ications. If you are using Outlook Express/Windows Mail, please make sure
> you clear the check box "Tools/Options/Read: Get 300 headers at a time" to
> see your reply promptly.
>
> Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
> where an initial response from the community or a Microsoft Support
> Engineer within 1 business day is acceptable. Please note that each follow
> up response may take approximately 2 business days as the support
> professional working with you may need further investigation to reach the
> most efficient resolution. The offering is not appropriate for situations
> that require urgent, real-time or phone-based interactions or complex
> project analysis and dump analysis issues. Issues of this nature are best
> handled working with a dedicated Microsoft Support Engineer by contacting
> Microsoft Customer Support Services (CSS) at
> http://msdn.microsoft.com/subscripti...t/default.aspx.
> ==================================================
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
>

 
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John Austin
Guest
Posts: n/a
 
      17th Dec 2007
Hello Jialiang,

I have read the article that you mentioned. The problem that I have is not
with the calculation of the workbook, it is the time taken to insert data in
the workbook (with automatic calculation turned off) from a VB application
via OLE automation. This is the process that will take over 5 hours instead
of 1.5 hours.

--
John Austin


"Jialiang Ge [MSFT]" wrote:

> Hello John,
>
> From your post, my understanding on this issue is: you wonder why the
> automation of Excel 2007 looks slower than that of Excel 2003, and how to
> improve its performance. If I'm off base, please feel free to let me know.
>
> According to the MSDN article
> http://msdn2.microsoft.com/en-us/library/aa730921.aspx (Improving
> Performance in Excel 2007), the performance issue is caused by the
> increased limits in Excel 2007. The Excel 2007 "Big Grid" increases the
> maximum number of rows per worksheet from 65536 to over 1 million, and the
> number of columns from 256 (IV) to 16384 (XFD) (See
> http://msdn2.microsoft.com/en-us/lib...007excelPerf_B
> igGridIncreasedLimitsExcel). When we create large worksheets, it is easy to
> build them in a way that causes them to calculate slowly. However, by using
> a straightforward set of techniques, we can speed up most slow-calculating
> worksheets by a factor of 10 or 100:
> http://msdn2.microsoft.com/en-us/lib...007excelPerf_M
> akingWorkbooksCalculateFaster (Excel 2007 Performance Improvements)
> http://msdn2.microsoft.com/en-us/lib...007excelPerf_F
> indingPrioritizingCalculationBottlenecks (Finding and Prioritizing
> Calculation Bottlenecks)
> http://msdn2.microsoft.com/en-us/lib...007excelperf_E
> xcelPerformanceImprovements (Excel 2007 Performance Improvements)
> http://msdn2.microsoft.com/en-us/lib...007excelperf_T
> ipsOptimizingBottlenecks (Tips for Optimizing Bottlenecks)
>
> For instance, we could utilize the new feature of Excel 2007:
> multi-threaded calculation to improve the calculation speed, or temporarily
> set the calculation mode as "Manual" so that the formulas are only
> recalculated when you request it. You can also apply these techniques as
> you design and create worksheets to ensure that they calculate quickly.
>
> The Excel development team has been spending a lot of time tuning Excel
> 2007's calculation performance to make it as fast as possible. (See:
> http://blogs.msdn.com/excel/archive/...28/540939.aspx Help us make
> Excel 2007 faster¡Â*). Here are a few more posts about Excel performance
> from Excel team blog:
> http://blogs.msdn.com/excel/archive/...03/488822.aspx Multi-threaded
> calculation in Excel, or "how calculation can become much faster in Excel
> 12"
> http://blogs.msdn.com/excel/archive/...ce-new-whitepa
> per-available.aspx Excel Performance - New Whitepaper Available
> http://blogs.msdn.com/excel/archive/...26/474258.aspx Some other
> numbers ...
>
> Please try the above techniques according to your specific situation, and
> let me know if they can help you improve the performance. For any other
> concerns or questions, please feel free to let me know.
>
> Regards,
> Jialiang Ge ((E-Mail Removed), remove 'online.')
> Microsoft Online Community Support
>
> ==================================================
> For MSDN subscribers whose posts are left unanswered, please check this
> document: http://blogs.msdn.com/msdnts/pages/postingAlias.aspx
>
> Get notification to my posts through email? Please refer to
> http://msdn.microsoft.com/subscripti...ult.aspx#notif
> ications. If you are using Outlook Express/Windows Mail, please make sure
> you clear the check box "Tools/Options/Read: Get 300 headers at a time" to
> see your reply promptly.
>
> Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
> where an initial response from the community or a Microsoft Support
> Engineer within 1 business day is acceptable. Please note that each follow
> up response may take approximately 2 business days as the support
> professional working with you may need further investigation to reach the
> most efficient resolution. The offering is not appropriate for situations
> that require urgent, real-time or phone-based interactions or complex
> project analysis and dump analysis issues. Issues of this nature are best
> handled working with a dedicated Microsoft Support Engineer by contacting
> Microsoft Customer Support Services (CSS) at
> http://msdn.microsoft.com/subscripti...t/default.aspx.
> ==================================================
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
>

 
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Jim Rech
Guest
Posts: n/a
 
      17th Dec 2007
Significantly slower performance with Excel 2007 is a frequent lament here.
I had not seen Excel 2007 do anything in less than twice the time it took
Excel 2003, not that I've spent my life doing time trials.

I decided to see how automation via a simple VBS script compared. To my
surprise 2007 was only about 50% slower. Here's the script (save in a text
file with a VBS extension):

Dim XL
set XL = GetObject(,"Excel.Application")
xl.screenupdating=false
st = timer
for counter = 1 to 5000
xl.cells(counter,1).value = counter
next
msgbox timer-st
xl.screenupdating=true

You have to have one instance of Excel open (e.g., either 03 or 07), with a
workbook present when you run this. This isn't great performance but it's
way quicker than you're seeing. One caveat - I'm using Excel 2007 with SP1.
No idea if the patch helped.

--
Jim
"John Austin" <(E-Mail Removed)> wrote in message
news:42BC991D-A4DB-4BF0-ABB7-(E-Mail Removed)...
> Hello Jialiang,
>
> I have read the article that you mentioned. The problem that I have is not
> with the calculation of the workbook, it is the time taken to insert data
> in
> the workbook (with automatic calculation turned off) from a VB application
> via OLE automation. This is the process that will take over 5 hours
> instead
> of 1.5 hours.
>
> --
> John Austin
>
>
> "Jialiang Ge [MSFT]" wrote:
>
>> Hello John,
>>
>> From your post, my understanding on this issue is: you wonder why the
>> automation of Excel 2007 looks slower than that of Excel 2003, and how to
>> improve its performance. If I'm off base, please feel free to let me
>> know.
>>
>> According to the MSDN article
>> http://msdn2.microsoft.com/en-us/library/aa730921.aspx (Improving
>> Performance in Excel 2007), the performance issue is caused by the
>> increased limits in Excel 2007. The Excel 2007 "Big Grid" increases the
>> maximum number of rows per worksheet from 65536 to over 1 million, and
>> the
>> number of columns from 256 (IV) to 16384 (XFD) (See
>> http://msdn2.microsoft.com/en-us/lib...007excelPerf_B
>> igGridIncreasedLimitsExcel). When we create large worksheets, it is easy
>> to
>> build them in a way that causes them to calculate slowly. However, by
>> using
>> a straightforward set of techniques, we can speed up most
>> slow-calculating
>> worksheets by a factor of 10 or 100:
>> http://msdn2.microsoft.com/en-us/lib...007excelPerf_M
>> akingWorkbooksCalculateFaster (Excel 2007 Performance Improvements)
>> http://msdn2.microsoft.com/en-us/lib...007excelPerf_F
>> indingPrioritizingCalculationBottlenecks (Finding and Prioritizing
>> Calculation Bottlenecks)
>> http://msdn2.microsoft.com/en-us/lib...007excelperf_E
>> xcelPerformanceImprovements (Excel 2007 Performance Improvements)
>> http://msdn2.microsoft.com/en-us/lib...007excelperf_T
>> ipsOptimizingBottlenecks (Tips for Optimizing Bottlenecks)
>>
>> For instance, we could utilize the new feature of Excel 2007:
>> multi-threaded calculation to improve the calculation speed, or
>> temporarily
>> set the calculation mode as "Manual" so that the formulas are only
>> recalculated when you request it. You can also apply these techniques as
>> you design and create worksheets to ensure that they calculate quickly.
>>
>> The Excel development team has been spending a lot of time tuning Excel
>> 2007's calculation performance to make it as fast as possible. (See:
>> http://blogs.msdn.com/excel/archive/...28/540939.aspx Help us make
>> Excel 2007 faster¡*). Here are a few more posts about Excel performance
>> from Excel team blog:
>> http://blogs.msdn.com/excel/archive/...03/488822.aspx Multi-threaded
>> calculation in Excel, or "how calculation can become much faster in Excel
>> 12"
>> http://blogs.msdn.com/excel/archive/...ce-new-whitepa
>> per-available.aspx Excel Performance - New Whitepaper Available
>> http://blogs.msdn.com/excel/archive/...26/474258.aspx Some other
>> numbers ...
>>
>> Please try the above techniques according to your specific situation, and
>> let me know if they can help you improve the performance. For any other
>> concerns or questions, please feel free to let me know.
>>
>> Regards,
>> Jialiang Ge ((E-Mail Removed), remove 'online.')
>> Microsoft Online Community Support
>>
>> ==================================================
>> For MSDN subscribers whose posts are left unanswered, please check this
>> document: http://blogs.msdn.com/msdnts/pages/postingAlias.aspx
>>
>> Get notification to my posts through email? Please refer to
>> http://msdn.microsoft.com/subscripti...ult.aspx#notif
>> ications. If you are using Outlook Express/Windows Mail, please make sure
>> you clear the check box "Tools/Options/Read: Get 300 headers at a time"
>> to
>> see your reply promptly.
>>
>> Note: The MSDN Managed Newsgroup support offering is for non-urgent
>> issues
>> where an initial response from the community or a Microsoft Support
>> Engineer within 1 business day is acceptable. Please note that each
>> follow
>> up response may take approximately 2 business days as the support
>> professional working with you may need further investigation to reach the
>> most efficient resolution. The offering is not appropriate for situations
>> that require urgent, real-time or phone-based interactions or complex
>> project analysis and dump analysis issues. Issues of this nature are best
>> handled working with a dedicated Microsoft Support Engineer by contacting
>> Microsoft Customer Support Services (CSS) at
>> http://msdn.microsoft.com/subscripti...t/default.aspx.
>> ==================================================
>> This posting is provided "AS IS" with no warranties, and confers no
>> rights.
>>
>>



 
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Jialiang Ge [MSFT]
Guest
Posts: n/a
 
      18th Dec 2007
Hello John,

Would you let me know if the excel file contains some charts created by the
input data? Is there any formula column? Office 2007 SP1 has fixed some
performance issues when a workbook contains some charts created by a large
amount of data in a worksheet. Therefore, my suggestion is to install the
Office 2007 SP1:
http://www.microsoft.com/downloads/d...594-992C-4165-
A997-25DA01F388F5&displaylang=en and see if it has some improvements in
performance of your automation client.

Some members from Excel product team told me that they are still doing
their best to improve the overall performance of Excel 2007. It is slower
than previous version mainly because of its new "big grid" and features.

Regards,
Jialiang Ge ((E-Mail Removed), remove 'online.')
Microsoft Online Community Support

=================================================
When responding to posts, please "Reply to Group" via your newsreader
so that others may learn and benefit from your issue.
=================================================
This posting is provided "AS IS" with no warranties, and confers no rights.

 
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John Austin
Guest
Posts: n/a
 
      18th Dec 2007
Hello Jialiang,

No charts! I installed SP1 this morning and there was a small improvement on
my Xp test machine:
Excel 2003 50 seconds
Excel 2007 165 seconds
Excel 2007 SP1 126 seconds
So even with SP1, 2007 takes 2.5 longer to create the spreadsheets.
--
John Austin


"Jialiang Ge [MSFT]" wrote:

> Hello John,
>
> Would you let me know if the excel file contains some charts created by the
> input data? Is there any formula column? Office 2007 SP1 has fixed some
> performance issues when a workbook contains some charts created by a large
> amount of data in a worksheet. Therefore, my suggestion is to install the
> Office 2007 SP1:
> http://www.microsoft.com/downloads/d...594-992C-4165-
> A997-25DA01F388F5&displaylang=en and see if it has some improvements in
> performance of your automation client.
>
> Some members from Excel product team told me that they are still doing
> their best to improve the overall performance of Excel 2007. It is slower
> than previous version mainly because of its new "big grid" and features.
>
> Regards,
> Jialiang Ge ((E-Mail Removed), remove 'online.')
> Microsoft Online Community Support
>
> =================================================
> When responding to posts, please "Reply to Group" via your newsreader
> so that others may learn and benefit from your issue.
> =================================================
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
>

 
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Jim Rech
Guest
Posts: n/a
 
      18th Dec 2007
Big John-

You probably missed my post. What do you make of it? Did you get different
relative results? We both use automation to use entries in cells right?

--
Jim
"John Austin" <(E-Mail Removed)> wrote in message
news:75E75B10-CDB8-4F64-BB26-(E-Mail Removed)...
| Hello Jialiang,
|
| No charts! I installed SP1 this morning and there was a small improvement
on
| my Xp test machine:
| Excel 2003 50 seconds
| Excel 2007 165 seconds
| Excel 2007 SP1 126 seconds
| So even with SP1, 2007 takes 2.5 longer to create the spreadsheets.
| --
| John Austin
|
|
| "Jialiang Ge [MSFT]" wrote:
|
| > Hello John,
| >
| > Would you let me know if the excel file contains some charts created by
the
| > input data? Is there any formula column? Office 2007 SP1 has fixed some
| > performance issues when a workbook contains some charts created by a
large
| > amount of data in a worksheet. Therefore, my suggestion is to install
the
| > Office 2007 SP1:
| >
http://www.microsoft.com/downloads/d...594-992C-4165-
| > A997-25DA01F388F5&displaylang=en and see if it has some improvements in
| > performance of your automation client.
| >
| > Some members from Excel product team told me that they are still doing
| > their best to improve the overall performance of Excel 2007. It is
slower
| > than previous version mainly because of its new "big grid" and features.
| >
| > Regards,
| > Jialiang Ge ((E-Mail Removed), remove 'online.')
| > Microsoft Online Community Support
| >
| > =================================================
| > When responding to posts, please "Reply to Group" via your newsreader
| > so that others may learn and benefit from your issue.
| > =================================================
| > This posting is provided "AS IS" with no warranties, and confers no
rights.
| >
| >


 
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John Austin
Guest
Posts: n/a
 
      18th Dec 2007
Hi Jim,

The results are interesting. My problem is that I havn't got 2 PCs the same
- I did my tests by uninstalling Excel 2007, which is tedious. I have a
suprising situation where my laptop/vista/Excel 2007/SQL Server 2005 is the
same speed as a PC/Xp/Excel 2003/SQL Server 2000. Each of the 100 workbooks I
produce have about 25 worksheets each with 80 columns by 232 rows. They also
use macros to calculate in places so it is difficult to know exactly where
the problem lies, if indeed it is not a general problem throughout Excel
2007. When I get some time I will do some tests like yours and let you know
the results.

Regards
--
John Austin


"Jim Rech" wrote:

> Big John-
>
> You probably missed my post. What do you make of it? Did you get different
> relative results? We both use automation to use entries in cells right?
>
> --
> Jim
> "John Austin" <(E-Mail Removed)> wrote in message
> news:75E75B10-CDB8-4F64-BB26-(E-Mail Removed)...
> | Hello Jialiang,
> |
> | No charts! I installed SP1 this morning and there was a small improvement
> on
> | my Xp test machine:
> | Excel 2003 50 seconds
> | Excel 2007 165 seconds
> | Excel 2007 SP1 126 seconds
> | So even with SP1, 2007 takes 2.5 longer to create the spreadsheets.
> | --
> | John Austin
> |
> |
> | "Jialiang Ge [MSFT]" wrote:
> |
> | > Hello John,
> | >
> | > Would you let me know if the excel file contains some charts created by
> the
> | > input data? Is there any formula column? Office 2007 SP1 has fixed some
> | > performance issues when a workbook contains some charts created by a
> large
> | > amount of data in a worksheet. Therefore, my suggestion is to install
> the
> | > Office 2007 SP1:
> | >
> http://www.microsoft.com/downloads/d...594-992C-4165-
> | > A997-25DA01F388F5&displaylang=en and see if it has some improvements in
> | > performance of your automation client.
> | >
> | > Some members from Excel product team told me that they are still doing
> | > their best to improve the overall performance of Excel 2007. It is
> slower
> | > than previous version mainly because of its new "big grid" and features.
> | >
> | > Regards,
> | > Jialiang Ge ((E-Mail Removed), remove 'online.')
> | > Microsoft Online Community Support
> | >
> | > =================================================
> | > When responding to posts, please "Reply to Group" via your newsreader
> | > so that others may learn and benefit from your issue.
> | > =================================================
> | > This posting is provided "AS IS" with no warranties, and confers no
> rights.
> | >
> | >
>
>
>

 
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John Austin
Guest
Posts: n/a
 
      19th Dec 2007
Dear Jialiang,

I now have another problem. When I first tried my application with
Vista/Excel 2007, I had terrible performance with the first worksheet in the
workbook - it was taking several minutes to produce instead of maybe 15
seconds. The problem then disappeared and the system has been running well.
Today the original problem has re-appeared (following a reboot) and I am back
to taking several minutes to create the sheet. I really need to resolve this
issue as I need to demonstrate the system to prospective customers.

Best regards,
--
John Austin


"Jialiang Ge [MSFT]" wrote:

> Hello John,
>
> Would you let me know if the excel file contains some charts created by the
> input data? Is there any formula column? Office 2007 SP1 has fixed some
> performance issues when a workbook contains some charts created by a large
> amount of data in a worksheet. Therefore, my suggestion is to install the
> Office 2007 SP1:
> http://www.microsoft.com/downloads/d...594-992C-4165-
> A997-25DA01F388F5&displaylang=en and see if it has some improvements in
> performance of your automation client.
>
> Some members from Excel product team told me that they are still doing
> their best to improve the overall performance of Excel 2007. It is slower
> than previous version mainly because of its new "big grid" and features.
>
> Regards,
> Jialiang Ge ((E-Mail Removed), remove 'online.')
> Microsoft Online Community Support
>
> =================================================
> When responding to posts, please "Reply to Group" via your newsreader
> so that others may learn and benefit from your issue.
> =================================================
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
>

 
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