| .ASHX | Microsoft Corporation | Ficheiros Web | ASP.NET Web Handler File | OpenOffice Writer | Apache Software Foundation |
| .ASP | Microsoft Corporation | Ficheiros Web | Active Server Page | OpenOffice Writer | Apache Software Foundation |
| .ATT | Unknown Developer | Ficheiros Web | Web Form Post Data File | OpenOffice Writer | Apache Software Foundation |
| .AXD | Microsoft Corporation | Ficheiros Web | ASP.NET Web Handler File | OpenOffice Writer | Apache Software Foundation |
| .B | Rockstar Games | Ficheiros de Jogo | Grand Theft Auto 3 Saved Game File | OpenOffice Writer | Apache Software Foundation |
| .CFG | Unknown Developer | Ficheiros de Desenvolvedor | Configuration File | OpenOffice Writer | Apache Software Foundation |
| .CONFIG | Unknown Developer | Ficheiros de Desenvolvedor | Configuration File | OpenOffice Writer | Apache Software Foundation |
| .DIZ | Unknown Developer | Ficheiros de Texto | Description In Zip File | OpenOffice Writer | Apache Software Foundation |
| .DOCX | Microsoft Corporation | Ficheiros de Texto | Microsoft Word Open XML Document | OpenOffice Writer | Apache Software Foundation |
| .FAQ | The Document Foundation | Ficheiros de Imagem 3D | Frequently Asked Questions Document | OpenOffice Writer | Apache Software Foundation |
| .FPR | Hewlett-Packard | Ficheiros de Dados | Audit Workbench Project | OpenOffice Writer | Apache Software Foundation |
| .GFW | Open Source | Ficheiros GIS | GIF World File | OpenOffice Writer | Apache Software Foundation |
| .HRL | Ericsson Computer Science Laboratory | Ficheiros de Desenvolvedor | Erlang Header File | OpenOffice Writer | Apache Software Foundation |
| .ICF | Zoom Telephonics | Ficheiros de Cópia de Segurança | Zoom Router Configuration File | OpenOffice Writer | Apache Software Foundation |
| .JS | NetScape | Ficheiros Web | JavaScript File | OpenOffice Writer | Apache Software Foundation |
| .JSCRIPT | NetScape | Ficheiros Web | JavaScript File | OpenOffice Writer | Apache Software Foundation |
| .LST | Unknown Developer | Ficheiros de Texto | Data List | OpenOffice Writer | Apache Software Foundation |
| .LYT | Adminsoft | Ficheiros de Dados | Adminsoft Document Layout File | OpenOffice Writer | Apache Software Foundation |
| .ME | Unknown Developer | Uncommon Files | Temporary Delete Me File | OpenOffice Writer | Apache Software Foundation |
| .NFO | Microsoft Corporation | Ficheiros de Sistema | System Information File | OpenOffice Writer | Apache Software Foundation |
| .NOW | The Document Foundation | Ficheiros de Texto | Readme Text Document File | OpenOffice Writer | Apache Software Foundation |
| .PRG | Open Source | Ficheiros Executáveis | Program File | OpenOffice Writer | Apache Software Foundation |
| .README | The Document Foundation | Ficheiros de Texto | Readme Text Document File | OpenOffice Writer | Apache Software Foundation |
| .RPT | SAP | Ficheiros de Dados | Crystal Reports File | OpenOffice Writer | Apache Software Foundation |
| .SCRIPT | Unknown Developer | Ficheiros Executáveis | Generic Script File | OpenOffice Writer | Apache Software Foundation |
| .STC | Adobe Systems Incorporated | Ficheiros Web | Contribute Connection Key File | OpenOffice Writer | Apache Software Foundation |
| .STE | Adobe Systems Incorporated | Ficheiros de Configurações | Dreamweaver Site Settings File | OpenOffice Writer | Apache Software Foundation |
| .WN | WN | Ficheiros Web | WN Web File | OpenOffice Writer | Apache Software Foundation |
| .Y | Microsoft Corporation | Ficheiros de Imagem Raster | Subsampled Raw YUV Image | OpenOffice Writer | Apache Software Foundation |
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