| wlc | WISCO Word Power Document |
| wlp | Worldlabel Pro Wizard Designer Document |
| wls | 602Tab Workbook |
| wmc | WordStar 2000 Macro |
| wml | Wireless Markup Language Document |
| wmlc | Compiled WML Document |
| wn | WriteNow Text |
| wob | RIO Designer Object |
| woc | Windows OrgChart Organization Diagram |
| wodoc | Widgit Online Document |
| word | MacWrite Word Document |
| wp | Corel WordPerfect Document |
| wp2 | Winplot Drawing |
| wp3 | Winplot Drawing |
| wp3 | Winplot Mapping Document |
| wp4 | Corel WordPerfect Document |
| wp5 | Corel WordPerfect Document |
| wp6 | Corel WordPerfect Document |
| wpa | Act! Word Processor Document |
| wpc | Pazzles Inspiration Studio Document |
| wpc | WordPad Converter File |
| wpd | Corel WordPerfect Document |
| wpe | Corel WordPerfect Entrust Document |
| wpf | Corel WordPerfect Form |
| wpm | Corel WordPerfect Macro |
| wpost | Windows Live Writer Post |
| wpostx | Windows Live Writer Post |
| wps | Microsoft Works Document |
| wpt | Corel WordPerfect Template |
| wpw | WordPerfect Works Document |
| wq! | Quattro Pro Compressed Spreadsheet |
| wq1 | Quattro Pro Spreadsheet |
| wq2 | Quattro Pro Spreadsheet |
| wr1 | Lotus Symphony Spreadsheet |
| wrd | Psion Word File |
