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I have an older spreadsheet that uses the DATEVALUE function...properly! Sometimes it works and sometimes it doesn't. Anyone else have this problem? I have a 3 year old alienware aurora r11 with an i9 cpu etc.
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The input has to be text, and it has to be in a format that is recognised as a date based on your computer's regional settings.
Do you notice a difference between input values for which the function works and input values for which it doesn't?