Category Overview

Data File Extensions

Data file extensions are used by databases, applications, scientific tools, configuration systems, and structured datasets. Browse the formats below to identify a data file and find software that may read, import, edit, or export it.

15
Data Extensions
Category Guide

How to identify and use data file formats

Data files can be plain text, structured records, binary databases, caches, or application-specific resources. Avoid editing an unknown data file directly, keep a backup, and use the application that originally created it whenever possible.

Filter Extensions

Filter this category by the first letter of the extension.

15 Data Extensions Available
.C3D

Coordinate 3D File Format

The C3D (Coordinate 3D) file format is a public domain, binary file format used extensively in the fields of biomechanics, motion captu...

Data
.CACHE

Cache File

A cache file is a generic data container used by a wide variety of software applications to store temporary information intended to spe...

Data
.CATIA PART (.CATPART)

CATIA Part

A .CATPart file is a 3D CAD (Computer-Aided Design) part file created by CATIA (Computer-Aided Three Dimensional Interactive Applicatio...

Data
.CATPART

CATIA Part Document

The CATPART file format is a proprietary 3D CAD (Computer-Aided Design) file format developed by Dassault Systèmes for use with their C...

Data
.CCQ

Creative Choice Questionnaire Data File

The CCQ file extension is primarily associated with questionnaire and survey data files generated by specialized evaluation, assessment...

Data
.CFG

Configuration File

A CFG file is a configuration file used by various software programs to store settings and parameters. These files are typically plain...

Data
.CGT

CGTech VERICUT Project File

The CGT file extension is primarily associated with VERICUT, a sophisticated software suite developed by CGTech used for CNC simulation...

Data
.COLLADA

COLLADA Document

COLLADA (COLLAborative Design Activity) is an open standard XML schema for exchanging digital assets among various graphics software ap...

Data
.CONFIG

Configuration File

A 'config' file is a generic file extension used to store configuration settings for various software applications. These files typical...

Data
.CRAM

CRAM (Compressed Reference-oriented Alignment Map)

The CRAM file format is a highly efficient, compressed data format used primarily in the field of bioinformatics and genomics for stori...

Data
.CRASH

Crash Dump File

A .crash file is a crash report generated by macOS and iOS operating systems when an application unexpectedly terminates or encounters...

Data
.CRDOWNLOAD

Chrome Partial Download File

A .crdownload file is a temporary file extension used by the Google Chrome web browser (and Chromium-based browsers like Microsoft Edge...

Data
.CRT

X.509 Security Certificate

A .crt file is a security certificate file used primarily by web browsers and web servers to verify the identity of a website and estab...

Data
.CSV

Comma Separated Values

A CSV (Comma Separated Values) file is a plain text file that stores tabular data (numbers and text) in a simple, structured format. Ea...

Data
.CUP

SeeYou Waypoint File

The CUP file extension is primarily associated with SeeYou, a comprehensive flight planning and analysis software suite developed by Na...

Data
.C3D

Coordinate 3D File Format

The C3D (Coordinate 3D) file format is a public domain, binary file format used extensively in the fields of biomechanics, motion capture, and gait an...

.CACHE

Cache File

A cache file is a generic data container used by a wide variety of software applications to store temporary information intended to speed up future re...

.CATIA PART (.CATPART)

CATIA Part

A .CATPart file is a 3D CAD (Computer-Aided Design) part file created by CATIA (Computer-Aided Three Dimensional Interactive Application), a multi-pla...

.CATPART

CATIA Part Document

The CATPART file format is a proprietary 3D CAD (Computer-Aided Design) file format developed by Dassault Systèmes for use with their CATIA software s...

.CCQ

Creative Choice Questionnaire Data File

The CCQ file extension is primarily associated with questionnaire and survey data files generated by specialized evaluation, assessment, and analytica...

.CFG

Configuration File

A CFG file is a configuration file used by various software programs to store settings and parameters. These files are typically plain text or binary...

.CGT

CGTech VERICUT Project File

The CGT file extension is primarily associated with VERICUT, a sophisticated software suite developed by CGTech used for CNC simulation, verification...

.COLLADA

COLLADA Document

COLLADA (COLLAborative Design Activity) is an open standard XML schema for exchanging digital assets among various graphics software applications. It...

.CONFIG

Configuration File

A 'config' file is a generic file extension used to store configuration settings for various software applications. These files typically contain para...

.CRAM

CRAM (Compressed Reference-oriented Alignment Map)

The CRAM file format is a highly efficient, compressed data format used primarily in the field of bioinformatics and genomics for storing biological s...

.CRASH

Crash Dump File

A .crash file is a crash report generated by macOS and iOS operating systems when an application unexpectedly terminates or encounters a fatal error...

.CRDOWNLOAD

Chrome Partial Download File

A .crdownload file is a temporary file extension used by the Google Chrome web browser (and Chromium-based browsers like Microsoft Edge, Brave, and Op...

.CRT

X.509 Security Certificate

A .crt file is a security certificate file used primarily by web browsers and web servers to verify the identity of a website and establish a secure...

.CSV

Comma Separated Values

A CSV (Comma Separated Values) file is a plain text file that stores tabular data (numbers and text) in a simple, structured format. Each line of the...

.CUP

SeeYou Waypoint File

The CUP file extension is primarily associated with SeeYou, a comprehensive flight planning and analysis software suite developed by Naviter, which is...