Hello- I'm banging my head against the wall on this one. Searched this site, but can't find a solution.
When I try to open an .xls file in office 2010, I get the following error: 'file is in a different file format than its extension indicates'. It then opens in protected mode.
What is wrong. The file opens fine in 2003, but when I try to open in 2010, I get that error.
Any advice?
Thanks!
Setup: Office 2003 and 2010 - All versions are up to date and running in Win 7.
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