Edit: I was able to fix the issue by reentering the dates in the Website Created column.
I'm trying to find the number of days between two dates, the Start Date and Website Created date. They're both formatted as Date in Excel but Access sees Website Created as Text even though it's clearly Date.
I'm using a simple [field]-[field] formula but Access keeps giving me the Datatype is Mismatch error. I even copied and pasted the rows a few times so at least 10 dates are at the top of the column. Why doesn't Access recognize it as Date? In the Source Data, almost all the cells in Start Date has a date and most of the cells in Website Created are blank.
Expr1: [MAX Mega].[Program Start Date]-[MAX Mega].[Website Created]
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