.@@@ File Extension
MS-DOS 2.0 to 3.2x Backup Control File
| Developer | Microsoft |
| Popularity |
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What is a @@@ file?
A file with a .@@@ extension is a backup control file created by the BACKUP program included with MS-DOS and FreeDOS. It contains data used to load a DOS backup, including the backup disk's sequence number and the date on which the backup was created.
More Information
MS-DOS 2.0 to 3.2x created backup disks that contained a copy of each backed-up file and a BACKUPID.@@@ file. The file identified the disk as an MS-DOS backup disk.
FreeDOS, an open-source operating system that emulates MS-DOS on modern PCs and mobile devices, can also create backups that contain BACKUPID.@@@ files. To do so, use the FreeDOS /v (version) switch to choose the 3.2x and earlier backup format.
Common @@@ Filenames
BACKUPID.@@@ - a file created by MS-DOS or FreeDOS that identifies a disk as a backup disk
How to open a @@@ file
You can use FreeDOS's RESTORE program to restore an MS-DOS backup disk that contains a @@@ file.
