Deleting Every X Rows

When you import data from an outside source, you may run into a need to delete extraneous data from a worksheet. For instance, you may have a need to remove every second line from the data, or every fifth line. Doing this by hand can be tedious and prone to error. Fortunately, you can create a macro to help eliminate both the tedium and the errors.

The following macro, DeleteRows, will remove every X rows from your worksheet. All you have to do is select the rows you want it applied to. The macro, as written, will remove every second row. So, if you wanted to delete the first, third, fifth, and seventh rows beginning with row 10, you would select rows 10 through 16 and then run this macro. It results in rows 10 (the first row), 12 (the third row), 14 (the fifth row), and 16 (the seventh row) being deleted.

Sub DeleteRows()
    Dim iStart As Integer
    Dim iEnd As Integer
    Dim iCount As Integer
    Dim iStep As Integer
    Dim J As Integer

    iStep = 2    'Delete every 2nd row
    Application.ScreenUpdating = False
    iStart = 1
    iCount = Selection.Rows.Count
    'Find ending row to start deleting
    For J = iStart To iCount Step iStep
        iEnd = J
    Next

    Do While iEnd >= iStart
        Selection.Rows(iEnd).Delete
        iEnd = iEnd – iStep
    Loop
    Application.ScreenUpdating = True
End Sub

If you want to delete some other multiple of lines, simply change the setting for the iStep variable. For instance, if you want to delete every fifth row, change iStep from 2 to 5. (You only need to make the single change, in the iStep = 2 declaration.)