File Extension Library

.X File Extension

  • Developer by: Microsoft
  • Category: 3D Image Files
  • Format: Text

What is an .X file?

.X file extension is created by Microsoft. .X has been classified as 3D Image Files. The format of .X file is Text.

.X is DirectX Model File

3D image file used by DirectX technology, which is often used for rendering 3D graphics in games; may contain specifications for meshes, textures, animations, and objects; can be exported using the DirectX SDK plugins for 3ds Max and Maya, or with custom exporters for programs such as Blender and DeleD.

List of all softwares that can open the DirectX Model File
Microsoft DirectX SDK
File Type 2:

Lex Source Code File

Category: Developer Files Format: Text

Source code written in the Lex programming language (a standard lexical analyzer for Unix); may be processed with the lex utility included with most Unix distributions to generate a C program; the output is often written to a file named "lex.yy.c."

Lex source code files more often use the .L extension.

List of all softwares that can open the Lex Source Code File
Microsoft Visual Studio with MKS Lex & Yacc plug-in

How to Open .X file on different platforms

Open .X File on Windows

  • Right-click a .X
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .X file and Select check box "Always use this app to open .X files" Press "Ok"

Open .X File on Mac

  • Right-click (or Ctrl + Left-click) the .X file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .X File on Linux

Right click on the .X file, choose "Open with" and select a program from the list above

Open .X File on iPhone

Select a file. If you don't see an application to open the .X file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .X File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .X files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .X files

  1. You need to update the application that you normally use to open .X files. Only the latest version of the software supports the current .X file format
  2. You need to check the .X file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)