Opening/linking .xlsx files

[Jim]

I have had trouble linking new .xlsx files to my existing .xls files. Excel
would shut down. So I started saving all my files in the old .xls format.

I recently created a new file using .xlsx, but when I try to reopen it,
Excel shuts down.

Any suggestions???

 

[Sheeloo]

Are you able to open Excel 2007?

Try to create a new file and reopen it. If this does not work then try...
Close Excel first and On the Windows Taskbar

1) Start->Run-> excel.exe /unregserver ->OK.
2) Start->Run-> excel.exe /regserver ->OK.

See the space between exe and /regserver

You might have to designate a full path to excel.exe (most likely C:\Program
Files\Microsoft Office\Office12)

In that case Start->Run-> "C:\Program Files\Microsoft
Office\Office12\excel.exe" /regserver -> OK

Note that quotes are required because of spaces in the path