Univited change to Excel

[dschafer1]

Hello all,
This is my first post. This morning I went to my computer to do some book keeping and found all my saved OpenOffice calc. files had somehow converted to Excel "unlicensed product". I then get a pesky pop-up ad for a Microsoft 365 subscription. To use a file I have to click the "open with" to work the file in OpenOffice, the changes get saved in excel. Is there a way to get/change them back to how they were...an OpenOffice file? All my OpenOffice calc. files changed to that Excel....how that happen? How to fix?

Thanks in advance
Dan S.

[MrProgrammer]

All my OpenOffice calc. files changed to that Excel....how that happen?

[Solved] AOO files opening as Excel and I don't have Excel
[Solved] Unwanted file conversion (OpenOffice to Excel)

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