X (DirectX)

X File Format, or .x, is a text-based file format associated with Microsoft's DirectX API. It stores data related to 3D graphics. There is also a binary version.

See also dotXSI.

Identification
Files most likely begin with "".

Sample files

 * https://telparia.com/fileFormatSamples/poly/direct3DObject/

Links

 * Windows Dev Center: X File Format Reference
 * Windows Dev Center: X Files (Legacy) (Direct3D 9)
 * .x
 * Direct-X File Format
 * 3D Models with .X files