XLTHTML File Extension
Microsoft Excel HTML Spreadsheet Template
- File Type xlthtml
- Developer Microsoft
- Popularity
- Application Microsoft Excel
- Category Document Files
What is a XLTHTML file?
The XLTHTML file extension is linked to Microsoft Excel HTML Spreadsheet Template and belongs to the Document Files category, which includes 969 files.
With the creation of the Microsoft Excel HTML Spreadsheet Template (XLTHTML), Microsoft introduced file format along with 242 programs built for their use.
XLTHTML file support extends to various operating systems, including Mac OS and Windows. You can open a XLTHTML file using one of 2 programs, for example Microsoft Office and Microsoft Excel.
Programs that support XLTHTML files
Mac OS
How to open a XLTHTML file?
The most common reason why a XLTHTML 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.
When it comes to opening and working with XLTHTML files, Microsoft Office and Microsoft Excel are the top choices for users. If you want the most recent release of Microsoft Excel, head over to the Microsoft site and download the version designed to run on all platforms.
After installing, your OS should instantly open XLTHTML files with Microsoft Excel.
Set Microsoft Excel as the default XLTHTML handler
Changing Default Programs in Windows
- Start by right-clicking on your XLTHTML file and selecting the "Open With" option. From there, click "Choose another app" to continue;
- In the pop-up window, find and select the Microsoft Excel application from the available options;
- Make sure the "Always use this app" checkbox is checked and click "OK" to confirm your choice as the default app for opening XLTHTML files.
Choose an app to open a file on Mac
- Right click or use Control + left click on the desired XLTHTML file to launch the file options menu;
- Select "Open in application" and click "Other";
- Look towards the bottom of the window, where you will find the "Enable" menu. "Recommended programs" will be the default selection;
- Choose "All Programs" in this menu and search for Microsoft Excel. Check the box next to "Always open in app" to set it as the default option.
How to edit a XLTHTML file?
To edit XLTHTML files, it is essential to install software that supports not only viewing but also editing the document files. Online XLTHTML editors provide limited functionality compared to full-featured software for Microsoft Excel HTML Spreadsheet Template.
Best XLTHTML editors in 2026
Based on the specified criteria, here is a list of XLTHTML editors that may fit your requirements.
| XLTHTML Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| Microsoft Excel | Microsoft | Windows, Mac OS, Apple iOS, Android | 4.7 out of 5 (37 reviews) |
| Microsoft Office | Microsoft | Windows, Mac OS | 4.4 out of 5 (35 reviews) |
Effective solutions for XLTHTML file problems
Problematic XLTHTML files can usually be resolved by making small changes in your software. See the tips below to help fix common issues.
What Causes Microsoft Excel to Crash Frequently?
Microsoft Excel crashes can be attributed to outdated software. Make sure you have installed the latest updates for Microsoft products.
Restarting your computer can resolve numerous common problems, so it should be the initial step before changing any software-related settings.
How can I restore a damaged XLTHTML file?
Use a recovery program to open the damaged XLTHTML file and navigate to the "Repair" menu item. Please be patient while the recovery process completes, which will automatically restore the damaged document files.
What are the signs that my XLTHTML file is damaged?
Common indications of damaged XLTHTML document files are:
- Editing the archive in Microsoft Office results in slow or unresponsive behavior;
- The file causes Microsoft Excel or other programs to hang or crash during operation;
- Attempts to open the file result in errors or failed results;
- Unexplained increase in XLTHTML file size;
- Working with the file triggers the display of error messages;