To compare two spreadsheets using the Excel Spreadsheet Comparer Tool first copy the first spreadsheet to the 'A' spreadsheet

 

Then copy the second spreadsheet to compare to the 'B' spreadsheet

(notice Item 6 has been updated)

 

Go to the Main page and click on the Compare A to B button

(you can show processing so that you know that it isn't hung but it takes longer)

 

 

Go to Spreadsheet 'B' and any differences will be highlighted