You can use VBA to change the Zoom of a worksheet. Here’s code to change the Zoom of the ActiveWindow to 50%:

ActiveWindow.Zoom = 50

You can also loop through all the worksheets in your workbook to set a standard Zoom. The following Macro will set the Zoom for all worksheets to 50%:

Sub ZoomAll()
Dim ws As Worksheet

Application.ScreenUpdating = False

For Each ws In Worksheets
    ws.Activate
    ActiveWindow.Zoom = 50
Next

Application.ScreenUpdating = True
End Sub

And finally a magically growing worksheet. The following macro will loop through the Zooms for Sheet1, going from 10% to 200%, incrementing by 10%, pausing a second between changes, and then it will restore Sheet1 back to it’s original state.

Sub ZoomZoom()

Dim x As Integer 'variable for loop
Dim OriginalZoom As Integer 'variable for original zoom

Sheet1.Activate 'let's work with sheet1

OriginalZoom = ActiveWindow.Zoom 'get current zoom

'loop through zoom 10 to 200 by 10
    For x = 1 To 20
        ActiveWindow.Zoom = x * 10
        Application.Wait Now + TimeValue("00:00:01")
    Next x

'restore original zoom
ActiveWindow.Zoom = OriginalZoom

End Sub