I've been having a problem lately with Excel automatically converting all of the cells on my spreadsheet from standard number format to dates. I've created several spreadsheets for calculations and all the cells in the number formats that I wanted. It's been saved and actually reopened and used several times. I opened it this morning and now half of numbers are now converted to dates. I've had this happen several times on several different spreadsheets. Why is this happening? Is there a setting somewhere that I need to change?
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