How to open and view .XLSX files

When you attempt to open a .XLSX file, your PC displays an error: "Windows can't open this file". This error is caused by two issues in the Windows system registry: 1) the XLSX file type registration is missing, and 2) the host application (or the file viewer) for .XLSX files isn't properly associated with its file type registration.

Recommended Solution

Check both file type registration and host application association for XLSX files in the system registry. Registry errors are also the primary causes for system crashes and slowdowns. It is highly recommended that you check your PC for file related errors and any other system errors.

Download Instruction

Step 1: Download the free PC system scan tool provided by PC TuneUp Maestro.

Step 2: Click "Start Scan" to identify all potential issues.

Step 3: Review scan results and click "Fix Items".

   

    File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable
Supports: Windows 10, 8, 7, Windows Vista, & Windows XP (32-bit & 64-bit versions)
To uninstall this software follow the uninstall instruction.
   

Find a file viewer

The Open File function is designed to let you quickly find file viewer for over 5,000 unique file extensions. Hover mouse over thumbnails to enlarge. Click a thumbnail to download the solution.

7 Comments on "How to open and view .XLSX files"

Jeff S on April 17, 2016 said:
Great, I can open XLSX files now!
Laura C on April 27, 2016 said:
It worked. Very easy to use.
Tim D on May 4, 2016 said:
Wow, the free scan tool found lots of errors on my PC.
Louis A on May 16, 2016 said:
Finally, a .XLSX fix that actually works. Thanks.
Jeff S on May 24, 2016 said:
The fix worked like a charm!
Karen on June 5, 2016 said:
I appreciate the help.
Stuart M on June 16, 2016 said:
Thanks. You just saved me from 2 hrs of frustration.
   

    File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable
Supports: Windows 10, 8, 7, Windows Vista, & Windows XP (32-bit & 64-bit versions)
To uninstall this software follow the uninstall instruction.