| .W30 | Corel | Arquivos de fonte | Ventura Publisher Printer Font | Ventura Publisher | Corel |
| .W51 | Corel Corporation | Arquivos de dados | Corel WordPerfect 5.1 Document File | Corel WordPerfect | Corel |
| .W52 | Corel | Arquivos de dados | Corel WordPerfect For Windows Document | Corel WordPerfect | Corel |
| .W61 | Corel Corporation | Arquivos de Texto | Corel WordPerfect 6.1 Document | Corel WordPerfect | Corel |
| .WB2 | Threefold Photos, Inc. | Arquivos de imagem Raster | Webshots Picture File | Corel Quattro Pro | Corel |
| .WBK | Microsoft Corporation | Arquivos de cópia | Word Document Backup | Corel WordPerfect X8 | Corel |
| .WCM | Corel | Arquivos executáveis | WordPerfect Macro | Corel WordPerfect X8 | Corel |
| .WCP | Corel | Arquivos de vídeo | WinDVD Creator Project File | Corel WinDVD | Corel |
| .WD | Corel Corporation | Arquivos Gráficos | Corel PaintShop Photo Pro Image | PaintShop Pro | Corel |
| .WEAP | id Software | Arquivos de jogos | Quake 3 Engine Weapon File | Corel WordPerfect | Corel |
| .WFN | Corel | Arquivos de fonte | Corel Font Or Symbol File | Corel WordPerfect X8 | Corel |
| .WI | Open Source | Arquivos de imagem Raster | Wavelet Image | Corel Presentations X8 | Corel |
| .WIDGET | Microsoft Corporation | Arquivos executáveis | Microsoft Windows Mobile Widget | WinZip | Corel |
| .WJF | Corel | Arquivos de cópia | WinZip Job File | WinZip | Corel |
| .WK1 | IBM | Arquivos de dados | Lotus Worksheet | Corel Quattro Pro | Corel |
| .WK4 | IBM | Arquivos de dados | Lotus Lotus 1-2-3 V4 Worksheet | Corel Quattro Pro | Corel |
| .WKB | Corel | Arquivos de Texto | Corel WordPerfect Document | Corel WordPerfect | Corel |
| .WKE | IBM | Arquivos de planilha | Lotus 1-2-3 Educational Version Worksheet | Corel Quattro Pro | Corel |
| .WKQ | Corel | Arquivos de planilha | Quattro Pro For DOS Spreadsheet File | Corel Quattro Pro | Corel |
| .WMF | Microsoft Corporation | Arquivos de imagem vector | Windows Metafile | CorelDRAW Graphics Suite | Corel |
| .WMZ | Microsoft Corporation | Arquivos de configuração | Compressed Windows Media Player Skin | WinZip | Corel |
| .WN | WN | Arquivos Web | WN Web File | Corel WordPerfect | Corel |
| .WNF | Corel | Arquivos de fonte | CorelDraw Outline Font | CorelDRAW Graphics Suite | Corel |
| .WP | Corel | Arquivos de Texto | WordPerfect Document | Corel WordPerfect X8 | Corel |
| .WP4 | Corel | Arquivos de Texto | WordPerfect 4 Document | Corel WordPerfect X8 | Corel |
| .WP5 | Corel | Arquivos de Texto | WordPerfect 5 Document | Corel WordPerfect X8 | Corel |
| .WP6 | Corel | Arquivos de Texto | WordPerfect 6 Document | Corel WordPerfect X8 | Corel |
| .WPD | Corel | Arquivos de Texto | WordPerfect Document | Corel WordPerfect X8 | Corel |
| .WPF | Corel | Arquivos de dados | WordPerfect Form | Corel WordPerfect | Corel |
| .WPG | Corel | Arquivos de imagem vector | WordPerfect Graphic File | CorelDRAW Graphics Suite | Corel |
| .WPK | Corel | Arquivos executáveis | WordPerfect Macro | Corel WordPerfect X8 | Corel |
| .WPP | Serif | Arquivos Web | WebPlus Project File | Corel WordPerfect X8 | Corel |
| .WPT | Corel | Arquivos de Texto | WordPerfect Template | Corel WordPerfect X8 | Corel |
| .WPW | PC SOFT | Arquivos de desenvolvedor | WinDev Mobile Window File | Corel WordPerfect X8 | Corel |
| .WQ! | Corel | Arquivos de planilha | Corel Quattro Pro Compressed Spreadsheet | Corel Quattro Pro | Corel |
| .WQ0 | Corel | Arquivos de planilha | Quattro Pro For DOS Spreadsheet File | Corel Quattro Pro | Corel |
| .WQ1 | Corel | Arquivos de planilha | Quattro Pro For DOS Spreadsheet File | Corel Quattro Pro | Corel |
| .WQ2 | Corel | Arquivos de planilha | Quattro Pro For DOS Spreadsheet File | Corel Quattro Pro | Corel |
| .WRI | Microsoft Corporation | Arquivos de Texto | Microsoft Write Document | Corel WordPerfect X8 | Corel |
| .WRS | Corel Corporation | Arquivos de sistema | Corel WordPerfect Windows Printer Driver File | Corel WordPerfect X8 | Corel |
| .WS | MicroPro International Corp. | Arquivos de Texto | WordStar Document | Corel WordPerfect X8 | Corel |
| .WS2 | MicroPro International Corp. | Arquivos de Texto | WordStar Document | Corel WordPerfect X8 | Corel |
| .WSA | Sonicle | Arquivos de vídeo | WebSynth Media File | PaintShop Pro | Corel |
| .WSD | MicroPro International Corp. | Arquivos de Texto | WordStar Document | Corel WordPerfect X8 | Corel |
| .WVL | Open Source | Arquivos de imagem Raster | Wavelet Image | Corel Presentations X8 | Corel |
| .WWK | Corel Corporation | Arquivos de configuração | Corel WordPerfect Keyboard Layout File | Corel WordPerfect | Corel |
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