You can use the View Side by Side command button on the View tab in Excel 2007 to quickly and easily do a side-by-side comparison of any two worksheet windows that you have open. When you click this button after opening two workbook windows, Excel automatically tiles the windows.
To compare two worksheets side by side, follow these steps:
Open the two workbooks you want to compare.
Display the worksheet in each workbook that you want to compare side by side.
Click the View Side by Side button in the Window group of the View tab.
If you have more than two windows open when you click the View Side by Side command button, Excel opens the Compare Side by Side dialog box, where you click the name of the window that you want to compare with the one that’s currently active and click OK.
Scroll down or across a worksheet.
Both worksheets scroll together because the Synchronous Scrolling setting is enabled by default when you click the View Side by Side button.
(Optional) Click the Synchronous Scrolling button in the Window group if you want to turn off simultaneous scrolling.
Turning off simultaneous scrolling allows you to scroll through one worksheet without the other one scrolling, too.
(Optional) Click the Reset Window Position button if you want to reset the window positions of the two workbooks after resizing one or both windows.
You might have resized a window to get a better look at some data.
When you’re done comparing the worksheets, click the View Side by Side button in the Window group again.
Excel returns to Normal view.
