excel vba quickest way to clear sheet contents
'VBA methods to quickly clear a sheet.
'Remove values 
'but not formatting:
Sheet1.UsedRange.ClearContents
'Remove formatting
'but not values:
Sheet1.UsedRange.ClearFormats
'Remove everything:
Sheet1.UsedRange.Clear
'Remove everything potentially faster:
Sheet1.UsedRange.Delete
'Remove everything, fastest:
With Application
	.Calculation = xlManual
    .ScreenUpdating = False
    
    Sheet1.UsedRange.Delete
    
    .ScreenUpdating = True
    .Calculation = xlAutomatic
End With
