Track Changes From All Worksheets

I have found another user's code that will track changes for a single sheet, if that code is in the sheet. This code uses the Worksheet_Change function. However, I have just stumbled acroos the Workbook_Change function. The workbook function is exactly what I need, since I have multiple tabs that need to be tracked. However, the code does not seem to work. I can switch between the two functions, using the same code afterwards, but with the new workbooks phrase it does not work. I tried placing the Workbooks_Change in the "ThisWorkbook" object in VBA, but it does not seem to work there or anywhere else.

I have attached the file. The code is in the "thisworkbook" function.

For quick reference:

Private Sub Workbook_Change(ByVal Target As Range)
Dim r As Long, OutSht As Worksheet

Set OutSht = Sheets("Log")
r = OutSht.Cells(Rows.Count, 1).End(xlUp).Row + 1
OutSht.Cells(r, 1) = Target.Address
OutSht.Cells(r, 2) = Now
OutSht.Cells(r, 3) = Environ("UserName")
OutSht.Cells(r, 4) = Target.Value
OutSht.Columns("A:D").Columns.AutoFit
End Sub