| Microsoft Word Auto-backup Document Format | |
| Microsoft | |
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WBK file format is ues for storing backup copy of DOC file created with Microsoft Word. For WBK file to be generated user must activate appropriate option available in the word processor. WBK file will be then automatically generated upon opening or creating a DOC file.
WBK file is used to recover lost or corrupted DOC document file related with the WBK file.
Windows
Mac OS
| .ab | Google Android Debug Bridge Backup Format |
| .aba | Palm Address Book Archive Format |
| .abbu | Apple Address Book Archive Format |
| .abf | Adobe Binary Screen Font Format |
| .abk | Ability Write Backup Format |
| .acp | Alfresco Exported Repository Format |
| .adi | Active@ Disk Image Format |
| .aea | Ae Timer Alarm Document Format |
