| .AUX | Interscape | Indstillingsfiler | LaTeX Auxiliary File | TeXworks | Jonathan Kew and Stefan Löffler |
| .BBL | Thomas Feuerstack | Tekstfiler | BibTeX Generated Bibliography File | TeXworks | Jonathan Kew and Stefan Löffler |
| .BLG | Microsoft Corporation | Datafiler | Windows Binary Performance Log File | TeXworks | Jonathan Kew and Stefan Löffler |
| .BST | Various Developers | Ikke Almindelige Filer | BibTeX Style Document | TeXworks | Jonathan Kew and Stefan Löffler |
| .CLS | Leslie Lamport | Ikke Almindelige Filer | LaTeX Document Class File | TeXworks | Jonathan Kew and Stefan Löffler |
| .DFU | Apple | Systemfiler | iOS DFU File | TeXworks | Jonathan Kew and Stefan Löffler |
| .DTX | Open Source | Sideopsætningsfiler | Documented LaTeX File | TeXworks | Jonathan Kew and Stefan Löffler |
| .ETX | Open Source | Skrifttypefiler | TeX Font Encoding File | TeXworks | Jonathan Kew and Stefan Löffler |
| .GF | Jonathan Kew and Stefan Löffler | Skrifttypefiler | METAFONT Bitmap File | TeXworks | Jonathan Kew and Stefan Löffler |
| .INS | Open Source | Datafiler | LaTeX Installer Script | TeXworks | Jonathan Kew and Stefan Löffler |
| .LTX | GSC Game World | Spilfiler | S.T.A.L.K.E.R. Properties File | TeXworks | Jonathan Kew and Stefan Löffler |
| .MF | Walt Disney Imagineering | Spilfiler | Gameplay Multifile | TeXworks | Jonathan Kew and Stefan Löffler |
| .PK | Adobe Systems Incorporated | Lydfiler | Audition Peak File | TeXworks | Jonathan Kew and Stefan Löffler |
| .STY | Jørgen Sørensen / Jososoft | Lydfiler | Yamaha/Korg Keyboard Style | TeXworks | Jonathan Kew and Stefan Löffler |
| .TEX | Open Source | Tekstfiler | LaTeX Source Document | TeXworks | Jonathan Kew and Stefan Löffler |
| .TFM | Jonathan Kew and Stefan Löffler | Skrifttypefiler | TeX Font Metric File | TeXworks | Jonathan Kew and Stefan Löffler |
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