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!

How to Open Excel Sheets in Separate Windows. Whether you use Microsoft Excel to help run your invoicing, sales tracking, returns or payment divisions, spreadsheet software may be a daily ...

How to Open Excel 2007 Files As Separate Windows. If you work with multiple Excel files over the course of a workday, and especially if you use a dual-monitor setup, you might wonder how you can ...

The hacks are created for 32-bit Windows, but you can replace "Program Files" with "Program Files (x86)" in the download-able files to get them to work on 64-bit as well.