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Invalid signature

Just recently updated to Office 2010 suite on a XP system.  When I open a document in Excel 2010 with digital signatures they are invalidated.  This happens on opening the file no changes have been made to the file.  Is there a setting I'm missing.  I have word documents that are signed and they open just fine.

Answer
Answer
We ran into the same problem here between signing 2007 Excel docs and 2010 Excel docs.

Microsoft's 'workaround' is to disable AutoCalculation in the document. Perform a manual calculation, then sign the document. From then on the document's signatures appeared valid when opened up in other versions of Excel. This should also fix your problem with SP inconsistencies.

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Question Info

Last updated February 26, 2023 Views 8,198 Applies to: