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.REM File Extension

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File TypeBlackBerry Encrypted Data File

DeveloperResearch In Motion
3.8 (74 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryMisc Files


This file is saved in a binary format, which requires a specific program to read its contents.


File stored on a BlackBerry smartphone; may be one of several different file types, but uses an ".rem" extension to indicate the file has been encrypted; often has a compound file extension, such as ".jpg.rem," which would be an encrypted JPEG image file.

More Information

REM files can only be decrypted on a BlackBerry phone. You can turn off encryption by navigating to Options → Advanced → Media Card → Encrypt Media Files and then choosing "no." Once encryption is turned off, then you can transfer files to a computer and open them normally.

NOTE: REM files may be transferred to a computer using RIM's BlackBerry software, but cannot be opened directly on a Mac or PC.

Programs that open REM files
Research In Motion BlackBerry Desktop Manager
Research In Motion BlackBerry Desktop Manager
Updated 8/3/2011