Microsoft — microsoft excel tool

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600044

As you might be knowing that while working with microsoft excel workbook simultaneously in more than 2 files and when we try to undo some of the errors in only one file but it goes into every excel file which i am working with and deleting all contents which i really not to do in other files. Suggestion is the undo command must work only in that excel file in which i am working/showing in the screen and not all files i have opened it.