Backup Plus Backup Format
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Files with the .OLD extension contain backup data for a specific file, usually created when new information is added to the original file or when a newer version is created. This extension is usually added at the end of the full file name, for example a file called Dokument.doc will be named Dokument.doc.old.

OLD files can be created automatically by the software as well as manually by the user. If you want to access a file, it is usually enough to remove the .OLD suffix and open the file in the target application.

.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

Last updated

.mmf 04/13/2023
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