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Strict Open XML files do not open or save in Excel for iPad or Excel for Mac

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Summary

In Microsoft Excel for iPad or Microsoft Excel for Mac, when you try to open a workbook that has been saved in Strict Open XML format, you receive the following error message:

The workbook you are trying to open is an ISO Strict file

If you click OK in the message window, the file does not open.

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More Information

The ability to save Microsoft Office files in Strict Open XML format was introduced in Microsoft Office 2013 programs.

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Status

This is expected behavior when you try to open Strict Open XML files in Excel for iPad or Excel for Mac.

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Note This article also applies to Microsoft Excel for Mac for Office 365.

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Keywords: kb, kbsurveynew, kbprb

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Article Info
Article ID : 2960660
Revision : 4
Created on : 8/20/2020
Published on : 8/20/2020
Exists online : False
Views : 302