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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
RGO - Extension Details
Date Added: July 01, 2009
File Extension:  .RGO
Description 1: File extension .RGO is associated with a file format that the RepliGo Server for the BlackBerry Enterprise Server and RepliGo Professional use. With this file, common filetypes can be converted to a format that is viewable on BlackBerry smartphones. The kinds of files that RepliGo supports include Word Documents, PowerPoint presentations, OpenOffice files, image and fax files, Excel spreadsheets, PDFs and WordPerfect documents. Other formats such as .CSV, .ZIP and .RTF are likewise supported.
File Type:   Data file
Mode: ASCII
Program(s) to Open:  Windows and Pocket PC: Cerience RepliGo Viewer
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