Auto fill date that increments after every 4 rows
Solution 1:
You can use this formula, if your date is in A1, in A2 write:
=DATE(YEAR($A$1),MONTH($A$1),DAY($A$1)+INT((ROW()-1)/4))
and drag it down, it will increment the day every 4 rows you can change 4 to 3 or whatever number you need.