XLTM File Extension

Excel Open XML Macro-Enabled Spreadsheet Template

File Type xltm
Developer Microsoft
Popularity
4.4 (39 votes)
Application Microsoft Excel
Category Spreadsheet Files, Data Files
Format Zip

What is a XLTM file?

Excel Open XML Macro-Enabled Spreadsheet Template works with the XLTM file extension and is classified under Spreadsheet Files and Data Files, with a total of 6309 files.

With the creation of the Excel Open XML Macro-Enabled Spreadsheet Template (XLTM), Microsoft introduced file format along with 242 programs built for their use.

XLTM file support extends to various operating systems, including Windows, Mac OS and Linux. You can open a XLTM file using one of 8 programs, for example Microsoft Excel, LibreOffice Calc and OpenOffice Calc.

MIME types

application/vnd.ms-excel.template.macroEnabled.12

Windows

Mac OS

Linux

How to open a XLTM file?

The most common reason why a XLTM 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 XLTM files, Microsoft Excel, LibreOffice Calc and OpenOffice Calc 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.

When you finish installing Microsoft Excel, the system will automatically launch XLTM files with it.

Set Microsoft Excel to open XLTM by default

Changing Default Programs in Windows

Start by right-clicking on your XLTM file and selecting the "Open With" option. From there, click "Choose another app" to continue;
Find the Microsoft Excel application in the pop-up window and select it as your preferred program;
Select the "Always use this application" check box and click "OK" to save your selection as the default application for opening XLTM files.

Change default apps on Mac

Right-click or use Control + Left-click on the desired XLTM file to access the file’s context menu;
Select "Open in application" and click "Other";
At the bottom of the window, you will see the "Enable" menu. It is already set to the default option, "Recommended Programs";
Within this menu, select "All Programs" and then search for Microsoft Excel. Check the box next to "Always open in app" to make it the default program.

Easy XLTM Troubleshooting

When facing challenges with XLTM files, simple adjustments in your software can often solve the problem. Find helpful troubleshooting guidance below.

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 is often an effective solution to resolve various common problems. Therefore, it is recommended to do so before making any changes to the software configuration.

How can I restore a damaged XLTM file?

Use a recovery program to open the damaged XLTM file and navigate to the "Repair" menu item. Then wait for the recovery process to complete, which allows you to automatically repair corrupted spreadsheet files.

What are the signs that my XLTM file is damaged?

Common indications of damaged XLTM spreadsheet files are:

Editing the archive in Microsoft Excel results in slow or unresponsive behavior;
File hangs or crashes in Microsoft Excel or other programs;
The file does not open or opens with errors;
Unexplained increase in XLTM file size;
Working with the file triggers the display of error messages;

How to edit a XLTM file?

To edit XLTM files, it is essential to install software that supports not only viewing but also editing the spreadsheet files. Online XLTM editors provide limited functionality compared to full-featured software for Excel Open XML Macro-Enabled Spreadsheet Template.

Best XLTM editors in 2026

After analyzing the criteria, we have created a list of XLTM editors available for use.

XLTM Editor Software	Developer	Platforms	Overall Rating
Microsoft Excel	Microsoft	Windows, Mac OS, Apple iOS, Android	4.4 out of 5 (39 reviews)
PlanMaker	SoftMaker	Windows	4.3 out of 5 (42 reviews)

Convert to and from XLTM

If working with a XLTM file is challenging, one solution is to convert it to formats like X or other supported formats.

Keep in mind that converting a XLTM file may introduce some limitations, but the original format can often be restored.

Offline software options such as Microsoft Excel guarantee lossless conversion of XLTM files.