How to Set Microsoft 365 Excel as Default for XLSX Files
Question details
The user needs to set Microsoft 365 Excel as the default application for opening XLSX files when multiple versions of Excel are installed.
- Product
- Microsoft Excel
- Device & OS
- Windows 11
- Scenario
- Trying to open XLSX files automatically with Microsoft 365 Excel instead of an older version like Excel 2010.
- Observed behavior
- XLSX files continue to open in Excel 2010, and Microsoft 365 Excel does not appear in the 'Open With' list due to file association conflicts.
Verify your Microsoft 365 installation path (typically C:\Program Files\Microsoft Office\root\Office16) and ensure you have administrative privileges to change system default apps.
Set Default Application via Windows Settings
Use the Windows 11 Settings app to reassign the default program for the .xlsx extension to Microsoft 365.
This is the most direct method to fix file associations in Windows 11 when the system defaults to an older version of Office.
Click the Start button, type 'Settings', and press Enter to open the Settings app.
Select 'Apps' from the left-hand menu, then click on 'Default apps'.
In the search bar under 'Set a default for a file type or link type', type '.xlsx' and press Enter.
Click on the current default application (e.g., Excel 2010). A list of available apps will appear. Select the Microsoft 365 version of Excel and click 'OK' to apply the change.
Manually Browse for the Microsoft 365 Executable
If Microsoft 365 does not appear in the standard app list, manually locate the EXCEL.EXE file to force the association.
Avoid Multiple Version Conflicts with WPS Office
Installing multiple versions of Microsoft Office often leads to file association conflicts and registry errors. WPS Office is a lightweight, all-in-one suite that handles XLSX, DOCX, and PPTX files seamlessly without the bloat or version conflicts.
- 1. Download and Install: Get the official WPS Office installer from the website and follow the quick setup wizard.
- 2. Set as Default: During installation, check the box to set WPS Office as the default application for all Office file types.
- 3. Open Your Files: Double-click any XLSX file to instantly open it in WPS Spreadsheet without any association conflicts.
Frequently Asked Questions
Why does my computer keep opening Excel files in an older version?
When multiple versions of Microsoft Office are installed on the same computer, they often compete for file associations. Windows might default to the older version (like Office 2010) if the registry keys for the newer version were overwritten or if the older version was repaired recently.
Is it safe to have both Excel 2010 and Microsoft 365 installed?
While it is technically possible, Microsoft generally recommends against running multiple versions of Office on the same machine. It frequently causes file association conflicts, shared component errors, and update issues.
Where is the Microsoft 365 Excel executable located?
By default, the Microsoft 365 Excel executable (EXCEL.EXE) is located at C:\Program Files\Microsoft Office\root\Office16 for 64-bit installations.
How do I fix the 'Open With' menu if Microsoft 365 Excel is missing?
You can manually add it by right-clicking a file, selecting 'Choose another app', clicking 'Browse', and navigating directly to the EXCEL.EXE file in the Office16 root folder.
