X File Type

- The quick facts

What are X files and how to open them

Are you having problems opening an X file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is an X file?

X files have multiple uses, and Lex Source Code is one of them.

Lex Source Code File

The .x file extension is most commonly associated with Lex source code files. These files contain source code that has been written in the Lex syntax.

Lex is a program that generates a lexical analyzer based on an input Lex file. Often lex is used when programmers create compilers for other programming languages. Lex files often use the lex file extension.

How to open X files

Important: Different programs may use files with the X file extension for different purposes, so unless you are sure which format your X file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 10 different X openers which you will find listed below.

Last updated: June 29, 2022

All known file formats using extension .X

While Lex Source Code File is a popular type of X-file, we know of 6 different uses of the .X extension. Different software may use files with the same extension for different types of data.

Microsoft Direct3D Object

We know that one X format is Microsoft Direct3D Object. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

X opener for Windows

We have identified one X opener that is compatible with this specific type of X file.

X68000 Executable

The X68000 is a Japanese home computer created in 1987 by Sharp Corporation.

X files used by this computer contain an executable program, e.g., a game.

While we have not verified the apps ourselves yet, our users have suggested 10 different X openers which you will find listed below.

More file formats using the X extension

Through our research of X files, we know that the following formats exist. However, we have not yet analyzed them in detail, and we would love to hear from you if you have information about either of them.

Magic 3D Easy View Object

Aurora Editor Compiled Macro

X1 Compressed Archive

Various apps that use files with this extension

These apps are known to open certain types of X files. Remember, different programs may use X files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Atmel StudioAtmel StudioUser submitted
progeCAD ProfessionalprogeCAD ProfessionalUser submitted
Atmel AVRStudioAtmel AVRStudioUser submitted
Microsoft OfficeMicrosoft OfficeUser submitted
TimetableTimetableUser submitted
7-Zip7-ZipUser submitted
SingularLogic Report ViewerSingularLogic Report ViewerUser submitted
DirectX ViewerDirectX ViewerUser submitted
Embarcadero RadPHP XE2Embarcadero RadPHP XE2User submitted
3D Model Viewer3D Model ViewerUser submitted