All File Extensions Directory - File Extension AI

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12 extensions

Active filters: Letter: X Clear all

.X3D

Extended APK

Microsoft Excel Open XML Spreadsheet

data

.XPI

Mozilla Extension Package

Extensible Stylesheet Language

data

.XSLT

Extensible Stylesheet Language Transformations

programming

.XSPF

XML Shareable Playlist Format

data

.XYZ

Extensible Markup Language

data

.X_B

Parasolid Binary File

data

.X_T

Parasolid Model Part

data

Frequently Asked Questions

Everything you need to know about file extensions

Use the search bar at the top of the page or browse by categories. You can also filter alphabetically.

Each listing shows the extension, file type description, and compatible software on different platforms.

Our database is regularly updated with new file extensions and software compatibility information.

File Extensions

Filter extensions

Extensible 3D Graphics

x64 Architecture Identifier/Binary

x86-64 Architecture Binary/Executable

Extended APK

Microsoft Excel Open XML Spreadsheet

Mozilla Extension Package

Extensible Stylesheet Language

Extensible Stylesheet Language Transformations

XML Shareable Playlist Format

Extensible Markup Language

Parasolid Binary File

Parasolid Model Part

Extensible 3D Graphics

x64 Architecture Identifier/Binary

x86-64 Architecture Binary/Executable

Extended APK

Microsoft Excel Open XML Spreadsheet

Mozilla Extension Package

Extensible Stylesheet Language

Extensible Stylesheet Language Transformations

XML Shareable Playlist Format

Extensible Markup Language

Parasolid Binary File

Parasolid Model Part

Frequently Asked Questions

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What does each extension listing include?

How often is the database updated?