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What is an XTM File?

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Question: What is an XTM File?

Did you find an XTM file on your computer and wonder what program should open it? Maybe someone emailed you an XTM file but you're not sure how to use it. Perhaps you tried to open the XTM file but Windows told you that it could not open it.

Before you can open an XTM file (assuming it's even a file format that's intended to be viewed or edited), you'll need to determine what kind of file the .XTM file extension refers to.

Answer: A file with the XTM file extension is a CmapTools Exported Topic Map file.

Other types of files may also use the XTM file extension. If you know of any additional file formats that use the .XTM extension, please let me know so I can update this information.

How To Open an XTM File

The easiest way to open an XTM file is to double-click on it and let your PC decide which default application should open the file. If no program opens the XTM file then you probably don't have an application installed that can view and/or edit XTM files.

Warning: Take great care when opening executable file formats received via email or downloaded from websites you're not familiar with. See my List of Executable File Extensions for a listing of file extensions to avoid and why.

XTM files can be opened with IHMC CmapTools.

If you know anything else useful about XTM files, please let me know so I can update this page.

Tip: Use Notepad or another text editor to open the XTM file. Many files are text-only files meaning no matter the file extension, a text editor may be able to properly display the file's contents. This may or may not be the case with XTM files but it's worth a try.

If you find that an application on your PC does try to open the XTM file but it's the wrong application or if you would rather have another installed program open XTM files, see my How To Change the Default Program for a Specific File Extension guide for making that change in Windows.

How To Convert an XTM File

There are two main ways to attempt to convert an XTM file to another file type:

The first option involving opening the XTM file in its native program is preferable because it's both easier and will probably result in a more accurate file conversion. Of course if you don't have a program that opens XTM files, a third-party file conversion tool (the second option) could be very useful.

Important: You cannot usually change a file extension (like the XTM file extension) to one that your computer recognizes and expect the newly renamed file to be usable. An actual file format conversion using one of the methods described above must take place in most cases.

Still Having Problems Opening or Using an XTM File?

See Get More Help for information about contacting me on social networks or via email, posting on tech support forums, and more. Let me know what kinds of problems you're having with opening or using the XTM file and I'll see what I can do to help.

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