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Since installing Catalina 10.15 and Office 365 16.30 (updates installed the same day (something I will not due again)) when I attempt to save a workbook that I have used for a couple of years, I receive the alert: 'Your changes could not be saved to xxx.xlsx due to a sharing violation. I then receive the alert The file format end extension of 646820000.mactf don't match.
I contacted the Answer Desk who say it is an Apple Product and Apple support said it is a Microsoft problem.
Any thoughts or suggestions will be appreciated.
A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
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Hurray!!! the latest software level 16.38 has resolved the issue.
Thanks to all who worked on the resolution. I was not comfortable running the older version Excel (all to often, critical fixes are within a release), so I again feel secure.
Thank You...
The new monthly releases generally happen on the 2nd Tuesday of the month ("patch Tuesday"). Sometimes it happens on the 3rd Tuesday if the month starts on a Sunday, Monday or Tuesday. For June 2020, you should expect 16.38 to be generally available on the 16th.
Does anyone know when 16.38 will be available through Microsoft Update? I'm hesitant to install beta code.
I just tried 16.38 and it solved the problem!