Kuldeep wants to select every third cell for 1500 cells
The macro code to union all 500 cells is too long and causes a compile error!
Solution: Build 1, blank, blank. Copy those three cells and paste to 1500 cells
Select the 1500 cells. Home, Find & Select, Go To Special, Constants to select every third cell
Then, one line of VBA to move the selection N rows or columns away.
Finally, a VBA Macro to do the whole thing
Cool Tip: If you use Ctrl+G for Go To dialog, it shows recently selected ranges.
Cool Tip: In the Go To dialog, hold down Shift to select from Current Cell to the Go To cell.
VBA Tip: Using UsedRegion to find the last row in the worksheet