Date/time field types
We use a MySQL datetime field to allow storing of date and/or date time.
If the date times are "00:00:00" you could search and replace them on export, or alternatively look into how to get just the date from a datetime field in excel.
For example the excel datevalue function such as: =DATEVALUE("1/1/2021 5:05:05") or =DATEVALUE(B6)
Hope that helps!