.efl

File Type 1 Generic IconExternal Format Language File
File Format Proprietary (NFB)
Usage Open manually; may be referenced by an application
Rank ★ ☆ ☆  Uncommon
Description

Formatting file used by NFBTRANS, a Grade Two braille translation program developed by the National Federation of the Blind (NFB); contains instructions that direct the translator how to process a given input file.

EFL files may be global (used by multiple text files) or specific to a single file. Specific EFL files have the same filename as the text file, i.e. "document1.txt" and "document1.efl."

Open With
Windows

IconNFB NFBTRANS

Updated 2007
File Type 2 Generic IconEncryptafile Encrypted File
File Format Proprietary (XenoSystems)
Usage Open manually
Rank ★ ★ ☆  Average
Description

Secure file created by Encryptafile, an application for encrypting data using the latest industry standard encryption algorithms; supports the AES (US Advanced Encryption Standard) Rijndael algorithm as well as the Twofish and RSA encryption algorithms.

EFL files may use either secret-key or public-key encryption.

Open With
Windows

IconXenoSystems Encryptafile

Updated 2007
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