Converting time stamps in excel to dates

Question

I have a very large excel spread sheet that has a column of time stamps. Does anyone know convert that over to a date? Is there a function I can use? I tried format cell dat

Answer 1

This DATE-thing won't work in all Excel-versions.

=CELL_ID/(60 * 60 * 24) + "1/1/1970"

is a save bet instead.
The quotes are necessary to prevent Excel from calculating the term.