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The File Extension Library

What is a file extension?

Short answer: it's the set of letters after the period (.) in the name of a file.

Long answer: File extensions signify the file format of a file. It tells the operating system (OS) how data was stored in the file. Not all OS, require a file extension though. For instance, this is optional in Unix, but is mandatory with MS-DOS and Windows systems.

In most file formats the file type is actually defined by the contents (first bytes, file structure), but extensions are used to define the application that is used for opening the file.

Below is a detailed database of thousands of file extensions our team has compiled for you. Feel free to browse!


Browse all Extensions:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
RBC - Extension Details
Date Added: January 01, 1970
File Extension:  .RBC
Description 1: .RBC is the extension tied to Retrospect Backup Catalog File. It contains a backup data index that is created with Retrospect backup program software. The RBC files include info on where and when specific files were backed up as .RBF files. Restoring data requires referencing .RBC files, often named as "restorepoints.rbc. Dantz software previously developed Retrospect. EMC Insignia now owns and distributes Retrospect.
File Type:   Backup file
Mode: Binary
Program(s) to Open:  Mac and Windows: EMC Insignia Retrospect or Retrospect Express
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