So I have a date that is 20170529 but whenever I try to format it to a date, the cell just becomes #########. So normally, that means the column width is too small, but even
I had the same problem. I used "Gary's Student's" answer. You have to press ALT+F11 and just copy and paste, then close that window. Then you select the cells you want to change, go to VIEW tab, on the far right is macros, hit view macros and select the one that says "INeedADate"