While there is a way for you to open two Excel workbooks at the same time, you can also open multiple spreadsheets in separate windows. Learn how!

Q: When I open two Excel files in two instances of Excel and display them on two monitors, I find that I cannot then copy formulas back and forth between the files—only the formula’s calculated value ...

If you have two similar Excel spreadsheets, or different versions of the same original spreadsheet, it can be useful to compare the Excel files and see how they differ. If the spreadsheets are ...