sub writehello()
    ' we declare s2 as the sheet we want to work on
    dim s2 as worksheet
    set s2 = thisworkbook.sheets("sheet2")

    ' The three examples below will work
    s2.cells(3, 2) = "hello"  ' cells(row index, col index)
    s2.range("B3") = "hello"
    s2.[b3] = "hello"
end sub