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File Extensions

Browse file extensions by category or letter. Learn what each file type is used for and find software that can open, view, edit, or convert it.

3
Indexed file extensions
Popular searches:
.DOCX .7Z .AUTOCAD (DWG, DXF) .PDF .TXT .OBJ (.OBJ)

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Use this directory to look up file formats, understand what files are used for, and find compatible applications for Windows, macOS, Linux, mobile, and online tools.

Search by extension Enter extensions like PDF, APK, DAT, HEIC, ZIP, or DOCX.
Browse categories Filter by documents, images, videos, archives, data, and more.
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3 extensions
Executable Letter: D Clear all
.DLL

Dynamic Link Library

A DLL (Dynamic Link Library) file is a library that contains code and data that can be used by more than one program at the same time…

Executable
.DRV

Device Driver

A DRV file is a device driver file. Device drivers are essential software components that enable the operating system to interact with…

Executable
.DYLIB (DYNAMIC LIBRARY - MACOS)

Dynamic Library (macOS)

A dylib file is a dynamically linked library used on macOS operating systems. It's analogous to DLL files on Windows and SO files on L…

Executable
.DLL

Dynamic Link Library

A DLL (Dynamic Link Library) file is a library that contains code and data that can be used by more than one program at the same time. DLLs are a crucial part…

Executable
.DRV

Device Driver

A DRV file is a device driver file. Device drivers are essential software components that enable the operating system to interact with hardware devices, such a…

Executable
.DYLIB (DYNAMIC LIBRARY - MACOS)

Dynamic Library (macOS)

A dylib file is a dynamically linked library used on macOS operating systems. It's analogous to DLL files on Windows and SO files on Linux. Dylibs contain code…

Executable

Frequently Asked Questions

Everything you need to know about file extensions

You can search by entering a file extension directly in the search bar or browse the directory by category or alphabetical index.

Each listing provides a definition of the file extension, common use cases, compatible software, supported platforms, and related or alternative formats.

The database is updated regularly to reflect new file extensions, changes in software compatibility, and evolving file format standards.