Supported file types

SeekFast supports searching in most commonly used document formats. Below is a grouped list of supported file types with short descriptions. Some extensions are generic and may be used by different programs, so the descriptions below show the most common use.

Text document files

  • DOC, DOCX - Microsoft Word document formats.
  • ODT - OpenOffice or LibreOffice Writer document.
  • PDF - Portable Document Format document.
  • RTF - Rich Text Format document.
  • WPD - WordPerfect document.
  • TXT, TEXT - Plain text files.
  • MD, ADOC - Markdown and AsciiDoc text files.
  • TEX, LATEX, TEXI, TEXINFO - LaTeX and TeX documentation files.
  • BIB, AUX, BBL, BST, STY, CLS - LaTeX bibliography, style, and auxiliary files.
  • ETX, ASC, ANS, LIST, LST - Other text-based document and listing formats.

Spreadsheet and tabular data files

  • XLS, XLSX, XLSM - Microsoft Excel spreadsheet formats.
  • ODS - OpenDocument spreadsheet format.
  • CSV, TSV, TAB, DIF - Delimited and table data files.

Presentation files

  • PPT, PPTX - Microsoft PowerPoint presentation formats.

Email and ebook files

  • EML, MSG - Saved email message files.
  • MBOX - Mailbox file containing multiple messages.
  • EPUB - Ebook file format.

Subtitle and translation files

  • SRT, SUB - Subtitle files for video.
  • VTT - WebVTT subtitle file for web video.
  • DFXP - Timed subtitle and caption format.
  • TMX - Translation Memory eXchange file.

Web, markup, and structured data files

  • HTML, HTM, XHTML, SHTML, SHTM - Web page and markup files.
  • CSS - Cascading Style Sheets file.
  • XML, XSL, XSLT, XAML - Markup and transformation files.
  • JSON - Structured data exchange file.
  • JSP - JavaServer Pages web file.
  • ASP, ASPX, ASCX, ASMX, ASAX - Microsoft web application and service files.
  • HTC, HTT, SCT, WSC - Legacy HTML, script component, and template files.
  • WML, WMLS - Wireless Markup Language files.
  • URL - Internet shortcut file.
  • WSDL, JRXML, ZUL - Service definition, report template, and UI markup files.
  • ACGI, CGI, AXS - Script and application files used by web servers or web tools.

Programming and source code files

  • C, CC, CPP, CXX - C and C++ source code files.
  • H, HH, HPP, HXX - Header files used in C and C++ projects.
  • CS, LINQ - C# source code and LINQ query files.
  • JAVA, JAV - Java source code files.
  • JS, TS - JavaScript and TypeScript source code files.
  • PHP - PHP source code file.
  • PY - Python source code file.
  • RB - Ruby source code file.
  • GO - Go source code file.
  • KT - Kotlin source code file.
  • GROOVY - Groovy source code file.
  • SWIFT - Swift source code file.
  • VB, BAS, VBS - Visual Basic and VBScript files.
  • PL, PLX - Perl source code and script files.
  • LUA - Lua source code file.
  • SQL - SQL script file.
  • INO - Arduino sketch file.
  • PAS, P, DPR - Pascal and Delphi source/project files.
  • M - Objective-C or other language source file using the .m extension.
  • F, FOR, F77, F90 - Fortran source code files.
  • ASM, S, EQU - Assembly language source files.
  • AWK - AWK script file.
  • T - Source or test file used by some languages and tools.
  • EL - Emacs Lisp source file.
  • SRC - Generic source code file.

Script, shell, and automation files

  • BAT - Windows batch script file.
  • PS1 - PowerShell script file.
  • SH, KSH, CSH, TCSH, ZSH - Shell script files used on Unix-like systems.
  • AHK - AutoHotkey automation script.
  • COM - Legacy DOS command or application file.

Configuration, project, and build files

  • INI, CONFIG, CFG, PROPERTIES - Configuration and settings files.
  • DAT, DB, LOG - Generic data and log files, often text-based.
  • DEF, IDL, ODL, INC, INT, RC, RGS - Definition, interface, include, resource, and registry script files.
  • MAK, MK - Makefile and build script formats.
  • DSP, VCPROJ, CSPROJ, VBPROJ, VBDPROJ, DSW, SLN - Project and solution files for development tools.
  • VDPROJ, VDDPROJ, VDP, VJSPRJ - Deployment and installer project files.
  • VSPSCC, VSSCC, VSSSCC - Source control metadata files.
  • VSSETTINGS, VSTEMPLATE - Visual Studio settings and template files.
  • CLW, IIS, WCM, MANIFEST - Wizard, configuration, and manifest files.

Specialized technical data files

  • IES, LDT - Photometric data files used for lighting fixtures and luminaires.

Audio files

  • AA, AAX, AAC, AIFF, APE, DSF, FLAC, M4A, M4B, M4P, MP3, MPC, MPP, OGG, OGA, WAV, WMA, WV, WEBM - Supported audio formats.

Video files

  • MKV, OGV, AVI, WMV, ASF, MP4, M4P, M4V, MPEG, MPG, MPE, MPV, M2V - Supported video formats.

Image files

  • JPG, JPEG, JPE, JFIF, PNG, GIF, BMP, TIF, TIFF, WEBP, ICO, PSD, PCX, CR2, NEF, ARW, RW2 - Supported image formats.