Setting up two monitors side by side is definitely expensive but undoubtedly it increases your productivity. If you open a webpage in one monitor you can open a word document in the other. This way you can do two things simultaneously. But, there are certain programs that don’t make use of two monitors. The best example is Microsoft Excel 2010.
When you open two files in Excel 2010, they are all from the same instance of the application. Hence, you might not be able to open them in two monitors side by side. If you want to open them in two monitors and compare them side by side then here’s what you do:
Compare two Excel 2010 Files in Two Monitors:
Click on the file ribbon, and go to option Options and click on the advanced tab.
Under General, check ‘Ignore other applications that use Dynamic Data Exchange’.
Click on OK and close the window. Now you should be able to open two excel 2010 files in two monitors and compare them side by side.