Suddenly, all my saved Excel Worksheets are opening as Numbers documents, even though I've NEVER used the Numbers application, and even though the documents continue to be identified as Excel documents--losing years of work.  What happened?

How can I uninstall Numbers?  I've never used the Numbers application before, and suddenly all my saved Excel Worksheets are opening as Numbers documents, even though they continue to be identified as Excel documents?  I'm losing years of work.

Right click on a Excel Worksheet file, choose 'Get Info'. In the small window that opens change the 'Open with:' from Numbers to Excel. Click on 'Change All…'

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