What Is an OXT File?

How to Open and Convert This Type of File

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What is an OXT File?

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

Before you can open an OXT 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 .OXT file extension refers to.


A file with the OXT file extension is an OpenOffice.org Extension file.

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

How To Open an OXT File

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

OXT files can be opened with OpenOffice via Extension Manager, available from the Tools -> Extension Manager menu option within OpenOffice.

These OXT files are compressed files that use the same format as ZIP files. If you'd like to view the contents of this OpenOffice.org Extension file, rename the extension from OXT to ZIP and use your favorite free file extractor program (I like 7-Zip a lot) to extract the included files.

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

Tip: Use Notepad or another text editor to open the OXT 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 OXT files but it's worth a try.

If you find that an application on your PC does try to open the OXT file but it's the wrong application or if you would rather have another installed program open OXT 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 OXT File

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

The first option involving opening the OXT 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 OXT files, a third-party file conversion tool (the second option) could be very useful.

Important: You cannot usually change a file extension (like the OXT 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 OXT 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 OXT file and I'll see what I can do to help.

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