How to delete rows in Excel based on criteria using VBA?

Question

I am currently building a macro to format a sheet of data as well as to remove inapplicable rows of data. Specifically, I am looking to delete rows where Column L = \"ABC\"

Answer 1

Sub test()

    Dim bUnion As Boolean
    Dim i As Long, lastrow As Long
    Dim r1 As Range
    Dim v1 As Variant

    lastrow = Cells(Rows.Count, 1).End(xlUp).Row
    v1 = ActiveSheet.Range(Cells(1, 12), Cells(lastrow, 27)).Value2
    bUnion = False

    For i = 1 To lastrow
        If v1(i, 1) = "ABC" Or v1(i, 16) <> "DEF" Then
            If bUnion Then
                Set r1 = Union(r1, Cells(i, 1))
            Else
                Set r1 = Cells(i, 1)
                bUnion = True
            End If
        End If
    Next i
    r1.EntireRow.Delete

End Sub