Macro to Change Cell Background Color From White to No Fill

Thanks, the second one seems to work but how do I get it to cycle through each sheet in the workbook? Here is what I have:

Sub White2Blank()
Dim Ws As Worksheet

For Each Ws In Worksheets
    Cells.Select
    Application.FindFormat.Clear
    Application.FindFormat.Interior.ColorIndex = 2
    Application.ReplaceFormat.Clear
    Application.ReplaceFormat.Interior.ColorIndex = xlNone
    Selection.Replace What:="", Replacement:="", LookAt:=xlPart, SearchOrder _
        :=xlByRows, MatchCase:=False, SearchFormat:=True, ReplaceFormat:=True
Next Ws
End Sub