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 T64 file extension represents a Commodore 64 Tape Image file. This format was originally developed to store digital copies of prog…
TCX, which stands for Training Center XML, is an XML-based data exchange format developed by Garmin. It is primarily used to transfer…
A plain text file (.txt) is a simple, unformatted document that contains only text characters, adhering to a character encoding standa…
A TFSTATE file is a Terraform State file used by HashiCorp Terraform, an open-source infrastructure as code (IaC) software tool. This…
A TFSTATE.BACKUP file is an automatically generated backup of a Terraform state file (terraform.tfstate), which is used by HashiCorp's…
A TFT file is a compiled Human Machine Interface (HMI) project file used by Nextion smart display screens. Nextion displays are hardwa…
The TFX (TensorFlow Extended) file format is primarily associated with the metadata and configuration artifacts generated by the Tenso…
A .thmx file is a Microsoft Office Theme file used to store formatting settings that can be applied across various Microsoft Office ap…
The .tif or .tiff file format, when used to store elevation data, is a powerful and versatile raster format commonly employed in Geogr…
The TJA file format is a plain text-based configuration file used primarily by Taiko no Tatsujin (Drum Master) rhythm game simulators…
The TLS file extension is primarily associated with TuneLab, a professional-grade software application used by piano technicians for t…
A .tmp file is a generic temporary file created by various programs and operating systems. These files are used to hold data temporari…
TOML is a configuration file format that is easy to read due to its simple syntax. It is designed to be easily parsed into data struct…
TopoJSON is an extension of GeoJSON that encodes topology. Rather than representing geometries as independent sets of coordinates, Top…
A .torrent file is a metadata file used by the BitTorrent protocol. It doesn't contain the actual data being shared, but rather inform…
The TRBP file extension is a specialized data format primarily associated with Trombone Champ, a rhythm-based music game developed by…
A TRC file is a diagnostic trace file used primarily by database management systems and various software applications to record intern…
The TRDP file format is a proprietary file format developed by Progress Software for use with the Telerik Reporting engine. It is a co…
The TRDX file format is a proprietary XML-based file format developed by Progress Software for use with Telerik Reporting. It serves a…
TRN files are typically associated with training data used in machine learning and artificial intelligence applications. These files c…
A TSV (Tab-Separated Values) file is a simple text-based format for storing tabular data, such as spreadsheet or database information…
The .ttf file extension represents a TrueType Font file. TrueType is a font standard developed by Apple and Microsoft in the late 1980…
TTML (Timed Text Markup Language) is an XML-based text format designed for representing timed text information. It's primarily used fo…
The T64 file extension represents a Commodore 64 Tape Image file. This format was originally developed to store digital copies of programs and games that were…
TCX, which stands for Training Center XML, is an XML-based data exchange format developed by Garmin. It is primarily used to transfer fitness data between GPS…
A plain text file (.txt) is a simple, unformatted document that contains only text characters, adhering to a character encoding standard such as ASCII, UTF-8…
A TFSTATE file is a Terraform State file used by HashiCorp Terraform, an open-source infrastructure as code (IaC) software tool. This file plays a critical rol…
A TFSTATE.BACKUP file is an automatically generated backup of a Terraform state file (terraform.tfstate), which is used by HashiCorp's Terraform infrastructure…
A TFT file is a compiled Human Machine Interface (HMI) project file used by Nextion smart display screens. Nextion displays are hardware solutions used for cre…
The TFX (TensorFlow Extended) file format is primarily associated with the metadata and configuration artifacts generated by the TensorFlow Extended machine le…
A .thmx file is a Microsoft Office Theme file used to store formatting settings that can be applied across various Microsoft Office applications, including Wor…
The .tif or .tiff file format, when used to store elevation data, is a powerful and versatile raster format commonly employed in Geographic Information Systems…
The TJA file format is a plain text-based configuration file used primarily by Taiko no Tatsujin (Drum Master) rhythm game simulators, most notably TaikoJiro a…
The TLS file extension is primarily associated with TuneLab, a professional-grade software application used by piano technicians for tuning acoustic pianos. A…
A .tmp file is a generic temporary file created by various programs and operating systems. These files are used to hold data temporarily while a file is being…
TOML is a configuration file format that is easy to read due to its simple syntax. It is designed to be easily parsed into data structures. TOML aims to be min…
TopoJSON is an extension of GeoJSON that encodes topology. Rather than representing geometries as independent sets of coordinates, TopoJSON geometries are stit…
A .torrent file is a metadata file used by the BitTorrent protocol. It doesn't contain the actual data being shared, but rather information about the files and…
The TRBP file extension is a specialized data format primarily associated with Trombone Champ, a rhythm-based music game developed by Holy Wow Studios. These f…
A TRC file is a diagnostic trace file used primarily by database management systems and various software applications to record internal events, errors, and ex…
The TRDP file format is a proprietary file format developed by Progress Software for use with the Telerik Reporting engine. It is a compressed archive format t…
The TRDX file format is a proprietary XML-based file format developed by Progress Software for use with Telerik Reporting. It serves as a declarative definitio…
TRN files are typically associated with training data used in machine learning and artificial intelligence applications. These files contain datasets used to t…
A TSV (Tab-Separated Values) file is a simple text-based format for storing tabular data, such as spreadsheet or database information. Each line in the file re…
The .ttf file extension represents a TrueType Font file. TrueType is a font standard developed by Apple and Microsoft in the late 1980s as a competitor to Adob…
TTML (Timed Text Markup Language) is an XML-based text format designed for representing timed text information. It's primarily used for subtitling and captioni…
Everything you need to know about file extensions