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.

441
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.

441 Data Extensions Available
.ACIS

ACIS Solid Model

The ACIS file format, identified by the '.acis' or '.sat' (Standard ACIS Text) extension, is a geometric modeling kernel developed by S...

Data
.FDS

Final Draft Document

The FDS file extension is associated with Final Draft, a screenwriting software application widely used in the film and television indu...

Data
.EOT

Embedded OpenType

The EOT (Embedded OpenType) file format is a compact form of OpenType fonts designed by Microsoft for use as embedded fonts on web page...

Data
.VSD

Microsoft Visio Drawing (Legacy)

The VSD file format is a proprietary file format used by older versions of Microsoft Visio, a diagramming and vector graphics applicati...

Data
.EDOC

eDocBuilder Document

The .edoc file extension is associated with eDocBuilder, a document generation and automation software. These files typically contain d...

Data
.PKPASS

Apple Wallet Pass

An Apple Wallet Pass (file extension .pkpass) is a digital representation of a physical card or ticket, designed for use within Apple's...

Data
.KFX

Kindle Format 10

KFX is a proprietary ebook file format developed by Amazon for use on Kindle devices and apps. It's a more advanced format than the old...

Data
.ERR

Error Log File

An ERR file is a generic file extension used to store error logs generated by various software applications, operating systems, or prog...

Data
.MEMDUMP

Memory Dump

A .memdump file is a snapshot of a computer's memory at a specific point in time. It contains the raw data stored in RAM, including pro...

Data
.DRP

DaVinci Resolve Project

The DRP file format is a proprietary project file format used exclusively by Blackmagic Design's DaVinci Resolve, a professional-grade...

Data
.OLECONTROLEXTENSION1

Unknown OLE Control Extension File

The file extension 'olecontrolextension1' is not a standard or widely recognized file extension. It likely represents a proprietary or...

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
.ENV

Environment Configuration File

An '.env' file is a plain text file that stores environment variables. These variables are key-value pairs that define the configuratio...

Data
.DOWNLOAD

Portable Document Format

The PDF (Portable Document Format) file format is a widely used standard developed by Adobe for representing documents in a manner inde...

Data
.X_T

Parasolid Model Part

The .x_t file extension is associated with Parasolid, a geometric modeling kernel. These files contain 3D solid model data in a text-ba...

Data
.NFC

Nintendo Family Computer ROM

An NFC file is a ROM (Read-Only Memory) image of a game cartridge for the Nintendo Family Computer (Famicom), the Japanese version of t...

Data
.PARTIAL

Partial Download

A '.partial' file extension typically indicates an incomplete or partially downloaded file. These files are created by download manager...

Data
.SAT

ACIS Solid Model

The .SAT file extension is associated with ACIS solid models. ACIS is a geometric modeling kernel developed by Spatial Corporation (now...

Data
.TIF (WITH ELEVATION DATA)

Tagged Image File Format with Elevation Data

The .tif or .tiff file format, when used to store elevation data, is a powerful and versatile raster format commonly employed in Geogra...

Data
.OLECONTROLEXTENSION10

OLE Control Extension 1.0

The 'olecontrolextension10' file extension is associated with data related to OLE (Object Linking and Embedding) controls, specifically...

Data
.X_B

Parasolid Binary File

The .x_b file extension represents a binary file format used by the Parasolid geometric modeling kernel. Parasolid is a widely used sol...

Data
.OLECONTROLEXTENSION9

Unknown OLE Control Extension 9 File

The file extension 'olecontrolextension9' is not a standard or widely recognized file extension. It likely represents a proprietary or...

Data
.OLECONTROLEXTENSION8

Unknown OLE Control Extension 8 File

The file extension 'olecontrolextension8' is not a standard or widely recognized file extension. It likely represents a proprietary or...

Data
.PPTX

Microsoft PowerPoint Open XML Presentation

The PPTX file format is the default file extension for presentations created in Microsoft PowerPoint version 2007 and later. It is part...

Data
.ACIS

ACIS Solid Model

The ACIS file format, identified by the '.acis' or '.sat' (Standard ACIS Text) extension, is a geometric modeling kernel developed by Spatial Corporat...

.FDS

Final Draft Document

The FDS file extension is associated with Final Draft, a screenwriting software application widely used in the film and television industry. An FDS fi...

.EOT

Embedded OpenType

The EOT (Embedded OpenType) file format is a compact form of OpenType fonts designed by Microsoft for use as embedded fonts on web pages. It allows we...

.VSD

Microsoft Visio Drawing (Legacy)

The VSD file format is a proprietary file format used by older versions of Microsoft Visio, a diagramming and vector graphics application. These files...

.EDOC

eDocBuilder Document

The .edoc file extension is associated with eDocBuilder, a document generation and automation software. These files typically contain document templat...

.PKPASS

Apple Wallet Pass

An Apple Wallet Pass (file extension .pkpass) is a digital representation of a physical card or ticket, designed for use within Apple's Wallet applica...

.KFX

Kindle Format 10

KFX is a proprietary ebook file format developed by Amazon for use on Kindle devices and apps. It's a more advanced format than the older AZW3 (Kindle...

.ERR

Error Log File

An ERR file is a generic file extension used to store error logs generated by various software applications, operating systems, or programming languag...

.MEMDUMP

Memory Dump

A .memdump file is a snapshot of a computer's memory at a specific point in time. It contains the raw data stored in RAM, including program code, vari...

.DRP

DaVinci Resolve Project

The DRP file format is a proprietary project file format used exclusively by Blackmagic Design's DaVinci Resolve, a professional-grade non-linear vide...

.OLECONTROLEXTENSION1

Unknown OLE Control Extension File

The file extension 'olecontrolextension1' is not a standard or widely recognized file extension. It likely represents a proprietary or custom file for...

.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...

.ENV

Environment Configuration File

An '.env' file is a plain text file that stores environment variables. These variables are key-value pairs that define the configuration settings for...

.DOWNLOAD

Portable Document Format

The PDF (Portable Document Format) file format is a widely used standard developed by Adobe for representing documents in a manner independent of appl...

.X_T

Parasolid Model Part

The .x_t file extension is associated with Parasolid, a geometric modeling kernel. These files contain 3D solid model data in a text-based format. The...

.NFC

Nintendo Family Computer ROM

An NFC file is a ROM (Read-Only Memory) image of a game cartridge for the Nintendo Family Computer (Famicom), the Japanese version of the Nintendo Ent...

.PARTIAL

Partial Download

A '.partial' file extension typically indicates an incomplete or partially downloaded file. These files are created by download managers or web browse...

.SAT

ACIS Solid Model

The .SAT file extension is associated with ACIS solid models. ACIS is a geometric modeling kernel developed by Spatial Corporation (now part of Dassau...

.TIF (WITH ELEVATION DATA)

Tagged Image File Format with Elevation Data

The .tif or .tiff file format, when used to store elevation data, is a powerful and versatile raster format commonly employed in Geographic Informatio...

.OLECONTROLEXTENSION10

OLE Control Extension 1.0

The 'olecontrolextension10' file extension is associated with data related to OLE (Object Linking and Embedding) controls, specifically version 1.0. O...

.X_B

Parasolid Binary File

The .x_b file extension represents a binary file format used by the Parasolid geometric modeling kernel. Parasolid is a widely used solid modeling ker...

.OLECONTROLEXTENSION9

Unknown OLE Control Extension 9 File

The file extension 'olecontrolextension9' is not a standard or widely recognized file extension. It likely represents a proprietary or custom file for...

.OLECONTROLEXTENSION8

Unknown OLE Control Extension 8 File

The file extension 'olecontrolextension8' is not a standard or widely recognized file extension. It likely represents a proprietary or custom file for...

.PPTX

Microsoft PowerPoint Open XML Presentation

The PPTX file format is the default file extension for presentations created in Microsoft PowerPoint version 2007 and later. It is part of the Office...