.X File Extension

There are 2 file types use the .X file extension:

  1. DirectX Model File
  2. Lex Source Code File

1. DirectX Model File

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.

Software's name License Platforms
Microsoft DirectX SDK Microsoft DirectX SDK Free Windows

Updated: November 22, 2011

2. Lex Source Code File

Lex Source Code File

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.

Software's name License Platforms
Any text editor Any text editor AndroidChrome OSiOSLinuxMacWindowsWindows Phone
Flex for Windows Flex for Windows Windows
Lex Lex Free Linux
Microsoft Visual Studio Microsoft Visual Studio Commercial Windows

Updated: June 10, 2011

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