| Extension |
File Description |
|
Popularity |
| .afp | FileProtector Encrypted File | | Average |
| .b2a | Btoa Encoded File | | Uncommon |
| .bfa | Blowfish Encrypted File | | Average |
| .bhx | BinHex Encoded File | | Average |
| .bin | Macbinary II Encoded File | | Very Common |
| .btoa | Binary-to-ASCII Encoded File | | Rare |
| .ccf | CryptLoad Container File | | Average |
| .cgp | PixelCryptor Encrypted File | | Uncommon |
| .clx | Ceelox SecureMail Secure Message | | Average |
| .cpio | Unix CIPO Archive | | Average |
| .cpt | Ccrypt Encrypted Archive | | Average |
| .dc4 | ViaThinkSoft (De)Coder 4 File | | Average |
| .dcd | DisCryptor Encrypted Database | | Average |
| .dcf | DisCryptor Encrypted Archive | | Average |
| .dco | DisCryptor Encrypted Virtual Disk Archive | | Average |
| .dim | DIME File | | Average |
| .dime | Direct Internet Message Encapsulation File | | Uncommon |
| .dlc | Download Link Container File | | Average |
| .e4a | Encrypt4all Archive | | Uncommon |
| .efl | Encryptafile Encrypted File | | Average |
| .efr | Encryptafile Private Key File | | Uncommon |
| .efu | Encryptafile Public Key File | | Uncommon |
| .enc | Encoded File | | Common |
| .fsm | Splitty Master Split File | | Average |
| .fss | Splitty Data Split File | | Average |
| .hex | BinHex Encoded File | | Average |
| .hqx | BinHex 4.0 Encoded File | | Very Common |
| .mfs | MetFS Encrypted File System | | Average |
| .mim | Multi-Purpose Internet Mail Message | | Very Common |
| .mime | Multi-Purpose Internet Mail Extension | | Average |
| .mme | Multi-Purpose Internet Mail | | Average |
| .mse | 3ds Max Encrypted MAXScript File | | Average |
| .pdc | Lizard Safeguard Secure PDF File | | Average |
| .rsdf | RapidShare Download File | | Uncommon |
| .rzk | Red Zion Key File | | Average |
| .rzx | File Crypt Encrypted File | | Uncommon |
| .sef | Encryptafile Signature File | | Average |
| .shy | ShyFile Encrypted File | | Average |
| .spd | Sealed Acrobat Document | | Uncommon |
| .spdf | Sealed PDF | | Average |
| .suf | Ccrypt Encrypted File | | Average |
| .switch | Switch Package | | Average |
| .uu | Uuencoded File | | Average |
| .uud | UUDecoded File | | Uncommon |
| .uue | Uuencoded File | | Very Common |
| .vlt | WinVault File Archive | | Average |
| .xxe | XXEncoded File | | Average |
| .yenc | yEnc File | | Uncommon |
| .ync | yEnc Encoded File | | Average |
