| idrisPackages.config | Parsers for various configuration files written in Idris |
| haskellPackages.siphon | Encode and decode CSV files |
| haskellPackages.tttool | Working with files for the Tiptoi® pen |
| perlPackages.TestCPANMetaJSON | Validate your CPAN META.json files |
| perlPackages.XMLLibXMLSimple | API for simple XML files |
| perlPackages.ConfigTiny | Read/Write .ini style files with as little code as possible |
| texlivePackages.dtxtut | Tutorial on writing .dtx and .ins files |
| perl540Packages.ENVUtil | Parse prefixed environment variables and dotnev (.env) files into Perl |
| perl538Packages.ENVUtil | Parse prefixed environment variables and dotnev (.env) files into Perl |
| cabal2nix | Convert Cabal files into Nix build instructions |
| bat-extras.batwatch | Watch for changes in one or more files, and print them with bat |
| haskellPackages.DataIndex | A package for adding index column to data files |
| haskellPackages.hyraxAbif | Modules for parsing, generating and manipulating AB1 files |
| haskellPackages.biopsl | Library and executables for working with PSL files |
| haskellPackages.biophd | Library for reading phd sequence files |
| haskellPackages.kicad-data | Parser and writer for KiCad files |
| haskellPackages.bibtex | Parse, format and processing BibTeX files |
| haskellPackages.biosff | Library and executables for working with SFF files |
| haskellPackages.cabal-info | Read information from cabal files |
| haskellPackages.fits-parse | Parse FITS files |
| haskellPackages.getemx | Fetch from emusic using .emx files |
| haskellPackages.flower | Analyze 454 flowgrams (.SFF files) |
| haskellPackages.bioace | Library for reading ace assembly files |
| haskellPackages.ignore | Handle ignore files of different VCSes |
| haskellPackages.hlatex | A library to build valid LaTeX files |
| haskellPackages.tzdata | Time zone database (as files and as a module) |
| haskellPackages.zmidi-core | Read and write MIDI files |
| mktorrent | Command line utility to create BitTorrent metainfo files |
| perl5Packages.IOLockedFile | Supply object methods for locking files |
| texlivePackages.show-pdf-tags | Extract PDF tags from tagged PDF files |
| texlivePackages.ltximg | Extract LaTeX environments into separate image files |
| texlivePackages.bibtex | Process bibliographies (bib files) for LaTeX or other formats |
| texlivePackages.luaxml | Lua library for reading and serialising XML files |
| stack2nix | Convert stack.yaml files into Nix build instructions. |
| whatstyle | Find a code format style that fits given source files |
| perl540Packages.TextDiff | Perform diffs on files and record sets |
| perl538Packages.TextDiff | Perform diffs on files and record sets |
| perl538Packages.PDFAPI2 | Create, modify, and examine PDF files |
| perl540Packages.PDFAPI2 | Create, modify, and examine PDF files |
| emacsPackages.ebuild-mode | Major modes for Gentoo package files |
| haskellPackages.Frames | Data frames for working with tabular data files |
| haskellPackages.dotgen | A simple interface for building .dot graph files. |
| haskellPackages.lsfrom | List directory files starting from a specific name |
| haskellPackages.json-state | Keep program state in JSON files |
| haskellPackages.cutter | Cut files according to a position list |
| haskellPackages.dotenv | Loads environment variables from dotenv files |
| haskellPackages.linux-perf | Read files generated by perf on Linux |
| haskellPackages.hs-gen-iface | Utility to generate haskell-names interface files |
| haskellPackages.mbox-tools | A collection of tools to process mbox files |
| haskellPackages.dep-t-value | Pair resources files with types within your program |
| haskellPackages.netpbm | Loading PBM, PGM, PPM image files |
| perlPackages.ParseSyslog | Parse Unix syslog files |
| texlivePackages.hyphen-base | core hyphenation support files |
| xdxf2slob | Tool to convert XDXF dictionary files to slob format |
| dconf2nix | Convert dconf files to Nix, as expected by Home Manager |
| haskellPackages.HSFFIG | Generate FFI import declarations from C include files |
| haskellPackages.EEConfig | ExtremlyEasyConfig - Extremly Simple parser for config files |
| haskellPackages.epub-tools | Command line utilities for working with epub files |
| haskellPackages.unmed2 | Extract useful information from Amiga MED files |
| haskellPackages.yxdb-utils | Utilities for reading and writing Alteryx .yxdb files |
| haskellPackages.svgsym | A tool to prune unused symbols from icon SVG files |
| perl5Packages.XMLLibXMLSimple | API for simple XML files |
| perlPackages.MaxMindDBWriter | Create MaxMind DB database files |
| perl5Packages.ConfigTiny | Read/Write .ini style files with as little code as possible |
| perl5Packages.TextReflow | Reflow text files using Knuth's paragraphing algorithm |
| perlPackages.PDFBuilder | Facilitates the creation and modification of PDF files |
| perlPackages.TextvFileasData | Parse vFile formatted files into data structures |
| perl5Packages.TestCPANMetaJSON | Validate your CPAN META.json files |
| perlPackages.ArchiveZip | Provide an interface to ZIP archive files |
| perl538Packages.YAMLTiny | Read/Write YAML files with as little code as possible |
| perl540Packages.YAMLTiny | Read/Write YAML files with as little code as possible |
| corrscope | Render wave files into oscilloscope views, featuring advanced correlation-based triggering algorithm |
| haskellPackages.Javasf | A utility to print the SourceFile attribute of one or more Java class files |
| haskellPackages.fitsio | A library for reading and writing data files in the FITS data format |
| haskellPackages.hamlet | Haml-like template files that are compile-time checked (deprecated) |
| haskellPackages.flight-igc | A parser for IGC files |
| haskellPackages.javasf | A utility to print the SourceFile attribute of one or more Java class files |
| haskellPackages.slice-cpp-gen | Generate C++ skeletons from slice files |
| haskellPackages.yaml-union | Read multiple yaml-files and override fields recursively |
| perl540Packages.BioBigFile | Manipulate Jim Kent's BigWig and BigBed index files for genomic features |
| perl538Packages.BioBigFile | Manipulate Jim Kent's BigWig and BigBed index files for genomic features |
| haskellPackages.HCodecs | A library to read, write and manipulate MIDI, WAVE, and SoundFont2 files |
| haskellPackages.jvm-parser | A parser for JVM bytecode files |
| haskellPackages.massiv-io | Import/export of Image files into massiv Arrays |
| haskellPackages.ftp-client | Transfer files with FTP and FTPS |
| haskellPackages.off-simple | A parser for simplified-syntax OFF files |
| haskellPackages.zim-parser | Read and parse ZIM files |
| perlPackages.MaxMindDBReader | Read MaxMind DB files and look up IP addresses |
| perl5Packages.ParseSyslog | Parse Unix syslog files |
| simpleini | Cross-platform C++ library providing a simple API to read and write INI-style configuration files |
| dirbuster | Brute force directories and files names on web/application servers |
| haskellPackages.clean-home | Keep your home dir clean by finding old conf files |
| haskellPackages.cabalQuery | A simple tool to query cabal files |
| haskellPackages.jvm-binary | A library for reading Java class-files |
| haskellPackages.git-config | A simple parser for Git configuration files |
| haskellPackages.pretty-loc | Tracking and highlighting of locations in source files |
| haskellPackages.path-text-utf8 | Read and write UTF-8 text files |
| opam-installer | Handle (un)installation from opam install files |
| perlPackages.CPANChanges | Read and write Changes files |
| perl5Packages.PDFBuilder | Facilitates the creation and modification of PDF files |