With Excel 2003, when I follow the advice to enter #NULL! into help, one
of
the first topics listed is "ERROR.TYPE worksheet function". (Similarly
if
you use #VALUE! in help.) Is that what you are looking for?
My version of the ERROR.TYPE() help page has a list of those error
values, not an explanation of them. I have attached the help page
below. Does yours look significantly differently?
Of course, I could enter each error value into the Help search field
and go to each "Correct a #... error" link, which describes the
conditions that cause that error.
But I thought I had found a single Help page that had a synopsis of
each error value -- that is, a short explanation. Something like this
(from my book):
#DIV/0! Formula is trying to divide by zero
#N/A Formula uses or refers to a cell that uses the NA()
function.
(Also some other conditions, such as a LOOKUP error.)
#NAME? Formula uses a name that Excel does not recognize.
#NULL! Formula uses an intersection of two ranges that do not
intersect.
#NUM! Function argument is outside its valid range of values.
#REF! Formula refers to a cell that is not valid.
#VALUE! Formula includes an argument or operand of the wrong type.
However, on second thought, since some knowledgable Excel users are
unable to find it themselves, I am beginning to think that perhaps I
only found that information (in one place) in my book.
-----
ERROR.TYPE
See Also
Returns a number corresponding to one of the error values in Microsoft
Excel or returns the #N/A error if no error exists. You can use
ERROR.TYPE in an IF function to test for an error value and return a
text string, such as a message, instead of the error value.
Syntax
ERROR.TYPE(error_val)
Error_val is the error value whose identifying number you want to
find. Although error_val can be the actual error value, it will
usually be a reference to a cell containing a formula that you want to
test.
If error_val is ERROR.TYPE returns
#NULL! 1
#DIV/0! 2
#VALUE! 3
#REF! 4
#NAME? 5
#NUM! 6
#N/A 7
Anything else #N/A
Example
The example may be easier to understand if you copy it to a blank
worksheet.
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