Excel Formula Every Nth Row
in B1 would be: `=IF(MOD(ROW()-1,3)=0,INDEX(A:A,ROW()),"")`. This will populate B1 with A1, B2 and B3 will be blank, B4 with A4, B5 and B6 will be blank, and so on. Method 3: Filtering Data For simpler scenarios, Excel's built-in filtering capabilities offer a straightforward sol