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File Extensions

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.

50
Indexed file extensions

Find the right information for any file extension

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.

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50 extensions
Data Letter: S Clear all
.SNW

S Note File

The SNW file extension is primarily associated with S Note, a note-taking application developed by Samsung for its Galaxy Note series…

Data
.SOLIDWORKS (SLDPRT)

SolidWorks Part

A .SLDPRT file is a 3D part file created by SolidWorks, a popular CAD (Computer-Aided Design) software used for designing and engineer…

Data
.SOLIDWORKS PART (.SLDPRT)

SolidWorks Part

A .SLDPRT file is a 3D part file created by SolidWorks, a popular CAD (Computer-Aided Design) software application developed by Dassau…

Data
.SPD

SPSS Data File

The SPD file format is primarily associated with IBM SPSS Statistics, a powerful software package used for interactive or batched stat…

Data
.SPV

SPSS Output Document

An SPV file is an output document created by IBM SPSS Statistics, a widely used software package for statistical analysis in social sc…

Data
.SQL

Structured Query Language File

A .sql file is a plain text file containing SQL (Structured Query Language) code. SQL is a standard programming language used for mana…

Data
.SQLITE

SQLite Database File

The .sqlite file extension typically indicates a database file created using the SQLite database management system. SQLite is a self-c…

Data
.SQLITE3

SQLite3 Database

The .sqlite3 file extension is commonly used for SQLite database files. SQLite is a self-contained, serverless, zero-configuration, tr…

Data
.SQLITEDB

SQLite Database

A .sqlitedb file is a database file created by SQLite, a self-contained, serverless, zero-configuration, transactional SQL database en…

Data
.SRA

Sequence Read Archive

The SRA (Sequence Read Archive) file format is a specialized data container developed by the National Center for Biotechnology Informa…

Data
.SRM

Super Nintendo Save RAM File

An SRM file is a save data file created by Super Nintendo Entertainment System (SNES) emulators. It represents the contents of the bat…

Data
.SRS

Microsoft Outlook Send/Receive Settings File

The SRS file extension is primarily associated with Microsoft Outlook, a widely used personal information manager and email client dev…

Data
.SRT

SubRip Subtitle File

The SRT (SubRip Subtitle) file format is a plain text file format used to store subtitles for video content. It's one of the most basi…

Data
.STACKDUMP

Stack Dump File

A stackdump file is a memory dump file generated by software applications, operating systems, or hardware devices when they encounter…

Data
.STATE

Saved State File

A file with the .state extension is typically a Saved State file used by various software applications, most notably video game emulat…

Data
.STC

OpenOffice.org XML Spreadsheet Template

The STC file extension is primarily associated with spreadsheet templates created by older versions of Apache OpenOffice Calc and Star…

Data
.STEP

Standard for the Exchange of Product Data

STEP files, identified by the '.step' or '.stp' extension, are a widely used ISO standard (ISO 10303) for representing 3D product manu…

Data
.STEP (.STP, .STEP)

Standard for the Exchange of Product Data

STEP (Standard for the Exchange of Product Data) files, identified by the extensions .stp or .step, are a widely used ISO standard (IS…

Data
.STL

Stereolithography

The STL (Stereolithography) file format is a widely used file format for representing 3D surface geometry. It is primarily used for ra…

Data
.STL (.STL)

Stereolithography

STL (Stereolithography) is a file format native to the stereolithography CAD software created by 3D Systems. STL files describe only t…

Data
.STORYBOARD

Storyboard File

The term 'storyboard' most commonly refers to a visual planning tool used in filmmaking, animation, advertising, and interactive media…

Data
.STP

Standard for the Exchange of Product Data

The .stp file extension, also known as STEP (Standard for the Exchange of Product Data), represents a 3D graphic file format used for…

Data
.SUO

Visual Studio Solution User Options

The SUO (Solution User Options) file is a proprietary binary file format used by Microsoft Visual Studio. It is designed to store user…

Data
.SWL

Adobe Flash Shared Library

An SWL file is a Shared Library file associated with Adobe Flash, which was originally developed by Macromedia. These files are design…

Data
.SNW

S Note File

The SNW file extension is primarily associated with S Note, a note-taking application developed by Samsung for its Galaxy Note series of smartphones and tablet…

Data
.SOLIDWORKS (SLDPRT)

SolidWorks Part

A .SLDPRT file is a 3D part file created by SolidWorks, a popular CAD (Computer-Aided Design) software used for designing and engineering mechanical parts and…

Data
.SOLIDWORKS PART (.SLDPRT)

SolidWorks Part

A .SLDPRT file is a 3D part file created by SolidWorks, a popular CAD (Computer-Aided Design) software application developed by Dassault Systèmes. These files…

Data
.SPD

SPSS Data File

The SPD file format is primarily associated with IBM SPSS Statistics, a powerful software package used for interactive or batched statistical analysis. Specifi…

Data
.SPV

SPSS Output Document

An SPV file is an output document created by IBM SPSS Statistics, a widely used software package for statistical analysis in social science, market research, h…

Data
.SQL

Structured Query Language File

A .sql file is a plain text file containing SQL (Structured Query Language) code. SQL is a standard programming language used for managing and manipulating dat…

Data
.SQLITE

SQLite Database File

The .sqlite file extension typically indicates a database file created using the SQLite database management system. SQLite is a self-contained, serverless, zer…

Data
.SQLITE3

SQLite3 Database

The .sqlite3 file extension is commonly used for SQLite database files. SQLite is a self-contained, serverless, zero-configuration, transactional SQL database…

Data
.SQLITEDB

SQLite Database

A .sqlitedb file is a database file created by SQLite, a self-contained, serverless, zero-configuration, transactional SQL database engine. It is a popular cho…

Data
.SRA

Sequence Read Archive

The SRA (Sequence Read Archive) file format is a specialized data container developed by the National Center for Biotechnology Information (NCBI) for the stora…

Data
.SRM

Super Nintendo Save RAM File

An SRM file is a save data file created by Super Nintendo Entertainment System (SNES) emulators. It represents the contents of the battery-backed Random Access…

Data
.SRS

Microsoft Outlook Send/Receive Settings File

The SRS file extension is primarily associated with Microsoft Outlook, a widely used personal information manager and email client developed by Microsoft. An S…

Data
.SRT

SubRip Subtitle File

The SRT (SubRip Subtitle) file format is a plain text file format used to store subtitles for video content. It's one of the most basic and widely supported su…

Data
.STACKDUMP

Stack Dump File

A stackdump file is a memory dump file generated by software applications, operating systems, or hardware devices when they encounter a critical error, crash…

Data
.STATE

Saved State File

A file with the .state extension is typically a Saved State file used by various software applications, most notably video game emulators (such as PCSX2, Retro…

Data
.STC

OpenOffice.org XML Spreadsheet Template

The STC file extension is primarily associated with spreadsheet templates created by older versions of Apache OpenOffice Calc and StarOffice Calc, which were o…

Data
.STEP

Standard for the Exchange of Product Data

STEP files, identified by the '.step' or '.stp' extension, are a widely used ISO standard (ISO 10303) for representing 3D product manufacturing information (PM…

Data
.STEP (.STP, .STEP)

Standard for the Exchange of Product Data

STEP (Standard for the Exchange of Product Data) files, identified by the extensions .stp or .step, are a widely used ISO standard (ISO 10303) for representing…

Data
.STL

Stereolithography

The STL (Stereolithography) file format is a widely used file format for representing 3D surface geometry. It is primarily used for rapid prototyping, 3D print…

Data
.STL (.STL)

Stereolithography

STL (Stereolithography) is a file format native to the stereolithography CAD software created by 3D Systems. STL files describe only the surface geometry of a…

Data
.STORYBOARD

Storyboard File

The term 'storyboard' most commonly refers to a visual planning tool used in filmmaking, animation, advertising, and interactive media design. While there isn'…

Data
.STP

Standard for the Exchange of Product Data

The .stp file extension, also known as STEP (Standard for the Exchange of Product Data), represents a 3D graphic file format used for storing 3D models and ass…

Data
.SUO

Visual Studio Solution User Options

The SUO (Solution User Options) file is a proprietary binary file format used by Microsoft Visual Studio. It is designed to store user-specific settings and pr…

Data
.SWL

Adobe Flash Shared Library

An SWL file is a Shared Library file associated with Adobe Flash, which was originally developed by Macromedia. These files are designed to store various asset…

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.