| File Extension: | BK4 |
| File Type Description: | Corel WordPerfect Document Backup File |
| File Type Developer: | Corel |
| Primary Associated Software: | Corel WordPerfect |
| Primary Software Developer: | Corel |
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Corel WordPerfect is the primary software program that utilizes the Corel WordPerfect Document Backup File file, originally developed by Corel. Annoymous user data statistics infer that BK4 files are most popular in China and with those using Windows 10 devices. Statisically, these users are most likely running the Google Chrome internet browser.
 | Corel WordPerfect by Corel |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .BK6 | Corel | Backup Files | Corel WordPerfect Document Backup File |
| .BK! | Corel | Backup Files | Corel WordPerfect Document Backup File |
| .BK9 | Corel | Backup Files | Corel WordPerfect Document Backup File |
| .BK3 | Corel | Backup Files | Corel WordPerfect Document Backup File |
| .BK8 | Corel | Backup Files | Corel WordPerfect Document Backup File |
| .ZLC | Check Point Software Technologies Ltd. | Data Files | ZoneAlarm Mailsafe Renamed Data |
| .FRM | Oracle Corporation | Database Files | MySQL Database Format File |
| .END | Corel | Settings Files | CorelDRAW Arrow-head Definition Data |
| .S01 | Lithops Software | Compressed Files | ZipSplitter Part 2 Archive |
| .RTF | Microsoft Corporation | Text Files | Rich Text Format File |
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