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. Read more about the other uses further down the page.
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 ten different X openers which you will find listed below.
Last updated: February 24, 2023
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 file 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.
Magic 3D Easy View Object
We know that one X format is Magic 3D Easy View Object. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.
Aurora Editor Compiled Macro
We know that one X format is Aurora Editor Compiled Macro. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.
X1 Compressed Archive
We know that one X format is X1 Compressed Archive. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.
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.
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 Studio||User submitted|
|progeCAD Professional||User submitted|
|Atmel AVRStudio||User submitted|
|Microsoft Office||User submitted|
|DirectX Viewer||User submitted|
|3D Model Viewer||User submitted|
|hoonnet HiNetRecorder||User submitted|
|3D Photo Browser||User submitted|
Help us help others
File.org helps thousands of users every day, and we would love to hear from you if you have additional information about X file formats, example files, or compatible programs. Please use the links below or email us at firstname.lastname@example.org to discuss further.
Not sure exactly what type of file you are trying to open? Try our new File Analyzer. It is a free tool that can identify more than 11,000 different kinds of files - most likely yours too! It will help you find software that can handle your specific type of file. Download File Analyzer here.