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.
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.
Refine your search with categories and letters
The FAA file extension represents a FASTA Amino Acid file, which is a text-based format used in bioinformatics and molecular biology t…
A FASL (Fast Load) file is a compiled binary object file used by various implementations of the Common Lisp programming language. When…
The FASTA format is a text-based format for representing either nucleotide sequences or amino acid (protein) sequences, in which nucle…
The FASTQ format is a text-based file format used for storing biological sequence data, specifically the output from high-throughput D…
FictionBook (FB2) is an XML-based e-book format primarily designed for representing books in a structured and standardized way. Its ma…
The FBX file format, short for Filmbox, is a proprietary file format developed by Autodesk. It's primarily used for exchanging 3D data…
The fcpbundle file format is a proprietary package format used by Apple's professional non-linear video editing software, Final Cut Pr…
Final Cut Pro XML (FCPXML) is a specialized XML-based file format developed by Apple Inc. specifically for its professional non-linear…
The fcpxmld file format is a specialized XML-based data structure used by Apple's Final Cut Pro (FCP) non-linear video editing softwar…
An FDB file is a database file created and used by the Firebird relational database management system (RDBMS). Firebird is an open-sou…
The FDS file extension is associated with Final Draft, a screenwriting software application widely used in the film and television ind…
The FDX file format is the native file format for Final Draft, a popular screenwriting software used extensively in the film and telev…
The Feather file format is a lightweight, columnar data format designed for fast data transfer between data analysis environments. It'…
The FIT (Flexible and Interoperable Data Transfer) file format is a compact, binary file format designed specifically for the storage…
FLAC (Free Lossless Audio Codec) is an audio coding format for lossless compression of digital audio. Unlike lossy audio formats such…
A Flatpak bundle is a self-contained package format used for distributing applications on Linux. It includes the application itself, i…
The 'FLIP' file extension is most commonly associated with digital flipbooks or interactive presentations created by various software…
The FLP file extension is the native project format for FL Studio, a comprehensive digital audio workstation (DAW) developed by Image…
FLV (Flash Video) is a container file format used to deliver video content over the internet using Adobe Flash Player or Adobe AIR. It…
The FNA file extension represents a FASTA Nucleic Acid file, which is a specialized text-based format widely utilized in the fields of…
The FOF file extension, standing for 'File of Files' or 'Folders of Files,' is primarily used as a manifest or index file in specializ…
An FPT file is a memo file used by various database management systems, most notably Visual FoxPro, FoxPro, and dBase. These files are…
The FQ file extension, commonly referred to as FASTQ, is a text-based file format widely used in bioinformatics for storing biological…
An FR3 file is a report design template created by FastReport, a powerful reporting tool used primarily in software development enviro…
The FAA file extension represents a FASTA Amino Acid file, which is a text-based format used in bioinformatics and molecular biology to store protein sequences…
A FASL (Fast Load) file is a compiled binary object file used by various implementations of the Common Lisp programming language. When a Lisp source file, typi…
The FASTA format is a text-based format for representing either nucleotide sequences or amino acid (protein) sequences, in which nucleotides or amino acids are…
The FASTQ format is a text-based file format used for storing biological sequence data, specifically the output from high-throughput DNA sequencing instruments…
FictionBook (FB2) is an XML-based e-book format primarily designed for representing books in a structured and standardized way. Its main goal is to preserve th…
The FBX file format, short for Filmbox, is a proprietary file format developed by Autodesk. It's primarily used for exchanging 3D data between different 3D app…
The fcpbundle file format is a proprietary package format used by Apple's professional non-linear video editing software, Final Cut Pro. Technically, it is a m…
Final Cut Pro XML (FCPXML) is a specialized XML-based file format developed by Apple Inc. specifically for its professional non-linear video editing software…
The fcpxmld file format is a specialized XML-based data structure used by Apple's Final Cut Pro (FCP) non-linear video editing software. Introduced as a succes…
An FDB file is a database file created and used by the Firebird relational database management system (RDBMS). Firebird is an open-source SQL database engine t…
The FDS file extension is associated with Final Draft, a screenwriting software application widely used in the film and television industry. An FDS file stores…
The FDX file format is the native file format for Final Draft, a popular screenwriting software used extensively in the film and television industry. It's spec…
The Feather file format is a lightweight, columnar data format designed for fast data transfer between data analysis environments. It's particularly well-suite…
The FIT (Flexible and Interoperable Data Transfer) file format is a compact, binary file format designed specifically for the storage and sharing of data gener…
FLAC (Free Lossless Audio Codec) is an audio coding format for lossless compression of digital audio. Unlike lossy audio formats such as MP3, AAC, and Vorbis…
A Flatpak bundle is a self-contained package format used for distributing applications on Linux. It includes the application itself, its dependencies, and runt…
The 'FLIP' file extension is most commonly associated with digital flipbooks or interactive presentations created by various software applications designed to…
The FLP file extension is the native project format for FL Studio, a comprehensive digital audio workstation (DAW) developed by Image-Line. These files serve a…
FLV (Flash Video) is a container file format used to deliver video content over the internet using Adobe Flash Player or Adobe AIR. It was widely popular for s…
The FNA file extension represents a FASTA Nucleic Acid file, which is a specialized text-based format widely utilized in the fields of bioinformatics and molec…
The FOF file extension, standing for 'File of Files' or 'Folders of Files,' is primarily used as a manifest or index file in specialized data processing enviro…
An FPT file is a memo file used by various database management systems, most notably Visual FoxPro, FoxPro, and dBase. These files are designed to store large…
The FQ file extension, commonly referred to as FASTQ, is a text-based file format widely used in bioinformatics for storing biological polymer sequences, typic…
An FR3 file is a report design template created by FastReport, a powerful reporting tool used primarily in software development environments such as Delphi, C+…
Everything you need to know about file extensions