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File Extensions

Clear explanations, compatible software, and practical guidance for file extensions.

380
Indexed file extensions

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380 extensions
.HTML

HyperText Markup Language

Data
.ACIS (.SAT, .SAB)

ACIS Solid Model

Data
.MDF

Media Disc Image File

Data
.PICKLE

Pickle Data

Data
.GLIFFY

Gliffy Diagram

Data
.DEM

Digital Elevation Model

Data
.DB3

SQLite3 Database File

Data
.SRT

SubRip Subtitle File

Data
.FEATHER

Apache Arrow Feather

Data
.KMZ

Keyhole Markup Language Zipped

Data
.BIP

Binary Image Partition

Data
.VDI

Virtual Disk Image

Data
.TEXTFILE

Plain Text File

Data
.NETCDF

Network Common Data Form

Data
.MDF/MDS

Media Disc Image File / Media Descriptor File

Data
.VHDX

Virtual Hard Disk v2

Data
.PLT

HPGL Plotter File

Data
.APKM

APK Manifest

Data
.SOLIDWORKS PART (.SLDPRT)

SolidWorks Part

Data
.3DM

Rhino 3D Model

Data
.BKP

Backup File

Data
.BLEND

Blender Project File

Data
.BSQ

Binary Sequence

Data
.GPX

GPS Exchange Format

Data

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.