| .123 | IBM | Fichiers de feuille de calcul | Lotus 1-2-3 Spreadsheet | NeoOffice | Planamesa Software Inc. |
| .CSV | Unknown Developer | Fichiers de données | Comma Separated Values File | NeoOffice | Planamesa Software Inc. |
| .CVS | Unknown Developer | Fichiers de données | Comma Separated Values File | NeoOffice | Planamesa Software Inc. |
| .DB | Dwayne Richard Hipp | Fichiers de base de données | Mobile Device Database File | NeoOffice | Planamesa Software Inc. |
| .DBF | dBase, LLC | Fichiers de base de données | Database File | NeoOffice | Planamesa Software Inc. |
| .DIF | Microsoft Corporation | Fichiers de données | Data Interchange Format | NeoOffice | Planamesa Software Inc. |
| .DOCM | Microsoft Corporation | Fichiers textes | Word Open XML Macro-Enabled Document | NeoOffice | Planamesa Software Inc. |
| .DOTM | Microsoft Corporation | Fichiers de mise en page | Word 2007 XML Macro-Enabled Template | NeoOffice | Planamesa Software Inc. |
| .DOTX | Microsoft Corporation | Fichiers de mise en page | Word 2007 XML Template | NeoOffice | Planamesa Software Inc. |
| .HWP | Hancom, Inc. | Fichiers textes | Hanword Document | NeoOffice | Planamesa Software Inc. |
| .IM8 | Sun Microsystems | Fichiers Raster Image | Sun Raster Graphic File | NeoOffice | Planamesa Software Inc. |
| .MET | Emulex Corporation | Fichiers de données | eMule Resource File | NeoOffice | Planamesa Software Inc. |
| .ODB | Various Developers | Fichiers de base de données | OpenDocument Database | NeoOffice | Planamesa Software Inc. |
| .ODC | Microsoft Corporation | Fichiers de paramètres | Office Data Connection File | NeoOffice | Planamesa Software Inc. |
| .ODG | Apache Software Foundation | Fichiers d’image vectorielle | OpenDocument Graphic File | NeoOffice | Planamesa Software Inc. |
| .ODI | Apache Software Foundation | Fichiers Raster Image | OpenDocument Image | NeoOffice | Planamesa Software Inc. |
| .ODS | Oracle Corporation | Fichiers de feuille de calcul | OpenDocument Spreadsheet | NeoOffice | Planamesa Software Inc. |
| .ODT | Oracle Corporation | Fichiers textes | OpenDocument Text Document | NeoOffice | Planamesa Software Inc. |
| .OTC | Apache Software Foundation | Fichiers divers | OpenDocument Chart Template | NeoOffice | Planamesa Software Inc. |
| .OTG | Apache Software Foundation | Fichiers d’image vectorielle | OpenDocument Graphic Template | NeoOffice | Planamesa Software Inc. |
| .OTI | Apache Software Foundation | Fichiers Raster Image | OpenDocument Image Template | NeoOffice | Planamesa Software Inc. |
| .OXT | Sun Microsystems | Fichiers de plugin | Apache OpenOffice Extension | NeoOffice | Planamesa Software Inc. |
| .PCD | PokéCheats | Fichiers de jeu | Pokémon Wonder Card File | NeoOffice | Planamesa Software Inc. |
| .POTM | Microsoft Corporation | Fichiers de données | PowerPoint Open XML Macro-Enabled Presentation Template | NeoOffice | Planamesa Software Inc. |
| .POTX | Microsoft Corporation | Fichiers de données | PowerPoint Open XML Presentation Template | NeoOffice | Planamesa Software Inc. |
| .PPM | The GIMP Development Team | Fichiers Raster Image | Portable Pixmap Image File | NeoOffice | Planamesa Software Inc. |
| .PSW | Microsoft Corporation | Fichiers divers | Windows Password Reset Disk File | NeoOffice | Planamesa Software Inc. |
| .PWI | Microsoft Corporation | Fichiers textes | Pocket Word Document | NeoOffice | Planamesa Software Inc. |
| .PXL | Microsoft Corporation | Fichiers de données | Pocket Excel File | NeoOffice | Planamesa Software Inc. |
| .RAS | Remedy Entertainment | Fichiers de jeu | Remedy Archive System File | NeoOffice | Planamesa Software Inc. |
| .SDC | Stardock Corporation | Fichiers de sauvegarde | Stardock Central Download Archive | NeoOffice | Planamesa Software Inc. |
| .SDD | Programming Sunrise | Fichiers de données | Smart Diary Suite Data File | NeoOffice | Planamesa Software Inc. |
| .SDP | Oracle Corporation | Fichiers de données | StarOffice Presentation File | NeoOffice | Planamesa Software Inc. |
| .SMF | Oracle Corporation | Fichiers textes | StarMath Formula File | NeoOffice | Planamesa Software Inc. |
| .STC | Adobe Systems Incorporated | Fichiers Web | Contribute Connection Key File | NeoOffice | Planamesa Software Inc. |
| .STD | Oracle Corporation | Fichiers d’image vectorielle | Apache OpenOffice Drawing Template | NeoOffice | Planamesa Software Inc. |
| .STI | Oracle Corporation | Fichiers de données | StarOffice Presentation Template | NeoOffice | Planamesa Software Inc. |
| .STW | Oracle Corporation | Fichiers textes | StarOffice Document Template | NeoOffice | Planamesa Software Inc. |
| .SUN | Sun Microsystems | Fichiers Raster Image | Sun Raster Graphic File | NeoOffice | Planamesa Software Inc. |
| .SXC | Sun Microsystems | Fichiers de feuille de calcul | StarOffice Calc Spreadsheet | NeoOffice | Planamesa Software Inc. |
| .SXI | Oracle Corporation | Fichiers de données | StarOffice Impress Presentation | NeoOffice | Planamesa Software Inc. |
| .VOR | Sun Microsystems | Fichiers divers | StarOffice Template | NeoOffice | Planamesa Software Inc. |
| .WK! | IBM | Fichiers de feuille de calcul | Lotus 1-2-3 Spreadsheet | NeoOffice | Planamesa Software Inc. |
| .WK1 | IBM | Fichiers de données | Lotus Worksheet | NeoOffice | Planamesa Software Inc. |
| .WP | Corel | Fichiers textes | WordPerfect Document | NeoOffice | Planamesa Software Inc. |
| .WPD | Corel | Fichiers textes | WordPerfect Document | NeoOffice | Planamesa Software Inc. |
| .WPS | Kingsoft | Fichiers textes | Kingsoft Writer Document | NeoOffice | Planamesa Software Inc. |
| .WR! | IBM | Fichiers de feuille de calcul | Lotus 1-2-3 Spreadsheet | NeoOffice | Planamesa Software Inc. |
| .WRI | Microsoft Corporation | Fichiers textes | Microsoft Write Document | NeoOffice | Planamesa Software Inc. |
| .XLS | Microsoft Corporation | Fichiers de feuille de calcul | Microsoft Excel 97 To 2003 Spreadsheet | NeoOffice | Planamesa Software Inc. |
| .XLW | Microsoft Corporation | Fichiers de données | Microsoft Excel Workspace | NeoOffice | Planamesa Software Inc. |
| .XPM | XnSoft | Fichiers Raster Image | X11 Pixmap Graphic | NeoOffice | Planamesa Software Inc. |
de 1 
