XMLX File Extension
Excel Spreadsheet
- File Type xmlx
- Developer Microsoft Corporation
- Popularity
- Application Microsoft Excel
- Category Spreadsheet Files
What is a XMLX file?
The XMLX extension is related to Excel Spreadsheet and is classified in the Spreadsheet Files category, which contains 113 files.
With the creation of the Excel Spreadsheet (XMLX), Microsoft introduced file format along with 242 programs built for their use.
XMLX files are compatible with various operating systems, including Windows and Mac OS. You can open a XMLX file using one of 2 programs, for example Microsoft Excel and Microsoft Office.
Programs that support XMLX files
How to open a XMLX file?
The most common reason why a XMLX file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.
Microsoft Excel and Microsoft Office are among the most widely used programs for handling XMLX files. If you wish to install the latest release of Microsoft Excel, visit the official Microsoft portal and download the edition that works on any operating system.
Following installation, XMLX files should be automatically opened with Microsoft Excel.
Set Microsoft Excel as the default XMLX application
Change the default app that opens a file on Mac
- Right-click or use Control + Left-click on the desired XMLX file to open a menu where you can choose from multiple actions;
- Choose "Open in Application" and click "Other";
- Look at the bottom of the window, where you will see the "Enable" menu. "Recommended Programs" will be selected as the default option;
- Within this menu select "All Programs" and navigate to Microsoft Excel. Check the box next to "Always open in app" to make sure it’s the default option.
Change default programs in Windows
- Start the process by right-clicking on your XMLX file and selecting "Open With". From there, click "Choose another app" to continue;
- From the options listed in the pop-up window, specifically choose Microsoft Excel as the application to handle your XMLX file;
- Be sure to check the "Always use this app" checkbox and click "OK" to save your preference.
How to edit a XMLX file?
To modify XMLX files, it is necessary to install dedicated software that lets you open and edit spreadsheet files. Online XMLX editors generally offer fewer tools compared to programs designed for Excel Spreadsheet.
Best XMLX Editor Software in 2026
Taking into account the provided details, we have prepared a list of XMLX editors that match your needs.
| XMLX Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Microsoft Excel | Microsoft | Windows, Mac OS, Apple iOS, Android | 4.7 out of 5 (37 reviews) |
Convert files to and from XMLX
If a XMLX file is cumbersome, converting it to formats such as CSV or other supported types can make it easier to manage.
It is important to understand that converting a XMLX file might limit certain functions, but this conversion is usually reversible.
Convert XMLX to other file formats
Troubleshooting guide for XMLX file complications
When issues arise with XMLX files, they can generally be fixed with small software tweaks. Use the troubleshooting tips below to help resolve them.
What are the possible solutions to recover a corrupt XMLX file?
Start a recovery program, open the damaged XMLX file and then select the "Repair" menu item to start the repair procedure. Wait for the recovery process to finish, allowing automatic repair of damaged spreadsheet files.
How can I confirm if my XMLX file has been damaged?
The signs of corrupted XMLX spreadsheet files can manifest as:
- The file shows slow performance when edited in Microsoft Excel;
- The file stops responding or freezes in Microsoft Excel or other programs;
- The file does not respond or shows errors when opening it;
- Unexplained XMLX file size inflation;
- The file operation is accompanied by the display of error messages;
What are the possible causes of Microsoft Excel crashing?
Lack of regular software updates can cause Microsoft Excel to crash. Make sure you have installed the latest updates for Microsoft products.
Restarting your computer is a crucial troubleshooting measure that can alleviate numerous common problems. Therefore, it is advisable to restart your computer before modifying any settings related to the software.