I exported a report form 1/1/2023 to 12/31/2023 and I got a *.csv file.

When I open the *.csv file in excell, for the first start date entry it says: 1672547101 while for the first end date entry it says: 1672547101.

How do I convert this to a date or a date and time entry in the cell?

-Marlon