So, you’d like to open up two versions of an .xlsx spreadsheet to compare differences row-by-row. Seems simple, right? Just open them both up in separate windows and then arrange the two windows side-by-side. Just kidding, it’s not that easy. For some reason, Excel spreadsheets all open in the same application window, which is totally contrary to the way Microsoft Office handles Word documents. Never fear—there’s a way to compare two Excel spreadsheets side-by-side without using two computers.
Step 1
Open the first Excel spreadsheet.
![]()
Step 2
Open the second Excel spreadsheet. You’ll notice that there are now two taskbar buttons for Excel. But no matter which one you click, it pops up in the same window. Frustrating!
Step 3
In Excel, Click the View tab.
Step 4
In the Window section, Click View Side by Side. By default, this will show your two Excel spreadsheets in separate panes, stacked horizontally.
Step 5
To change the orientation, Click Arrange All. Choose Vertical to have them side-by-side, with one in a left-hand column and the other in the right-hand column.
This is how I prefer to view my spreadsheets.
Step 6
Click Synchronous Scrolling. Now, when you scroll down on one window, the other will scroll down, too, making it even easier to compare differences.
Got it? Good. Now get back to work. I need the Johnson Report on my desk by 4PM!

Phew!!!! i was looking for this for a long time..
Thanks a lot for posting this..
If you really want to have each spreadsheet open in its own window in Excel 2010 (just like Word for docs), this trick works:
Run regedit.exe. First, browse to ‘HKEY_CLASSES_ROOT\Excel.Sheet.8\shell\Open’ and go through the steps below. Second, browse to ‘HKEY_CLASSES_ROOT\Excel.Sheet.12\shell\Open’ and go through the steps below again.
1. Rename the ‘ddeexec’ folder to ddeexec.bk – or just delete it, it’s up to you.
2. Open the ‘command’ folder.
3. Edit the ‘Default’ string and replace the /e or /dde with “%1″.
4. Edit the ‘command’ string and replace the /e or /dde with “%1″.
You are a god
Thank you so much. You made my life so much easier.
Thanks for the feedback Will and welcome to groovypost!
LOVE U !
I love you too @facebook-763586553:disqus !
heymchr’s note above works GREAT!! BUT – be sure to put in the QUOTE marks on each side of the %1 (yes, it does include the quote marks, not just what is inside the quote marks). Good stuff!
Or you can just get office CLASSIC MENUS and do the above and a lot more just like in office 2003!!
I installed the clssic menus for 2007, works fine with 2010 and I can find my menus when the icons in 2010 don’t help me.
Seriously cheap domain name registration, web & email hosting, web design & SEO for the fashion conscious. Visit today to see how Fashionable Domains can help develop and grow your online business.
I will gladly buy you a cheeseburger!!! thanks!
(frustrating an understatement…)
Or, if you want each sheet in it’s own seperate excel window so you do things like snap them next to each other.
open excel and open sheet 1
open excel again and open sheet 2
Abyone knows how to view side by side with MAC?? It’s driving me crazy!! Thanks
THANKS MAN IT WORKED
Awesome! Glad the article helped you out.
Welcome to groovypost!
Thank you! You saved my day!
Your welcome.
Welcome to the site!
groovy indeed! : )
This was SO helpful!! You literally saved me hours. Bless you!
I recently got a MAC, and I never realised how much I’d miss this feature! Does any know how to do it on MAC
Thanks, man.
Looks like Office 2013 Excel DOES keep the two spreadsheets separately (each in their own window) = good stuff!!
I want to view in two different windows. WHy can I not open two excel spreadsheets and view them on different computer screens side by side. Excel used to allow this and now can only be done within one excel window versus two. This and many other frustrating things with the new excel version. Why can’t they just leave well enough alone.
Excel 2013 does have the spreadsheets open up in completely different windows, just like Word Doc does….
Thank you for the rescue! Jeez!
Oh my God, Jack, thank you for posting this… my “side by side” view that was horizontal was making me crazy. I can now resume normal Wednesday stress.
Praise the Lord for your post. I was seriously struggling!