File extension	The full name of the file	Popularity
File extension AEP	Advanced Encryption Package Encrypted File
File extension AES	AES Crypt Encrypted File
File extension AFP	FileProtector Encrypted File
File extension ASC	PGP ASCII Armored File
File extension AXX	AxCrypt Encrypted File
File extension AZF	Secure format file
File extension AZS	AirZip FileSECURE File
File extension B2A	Btoa Encoded File
File extension BFA	Blowfish Encrypted File
File extension BHX	BinHex Encoded File
File extension BIN	Macbinary Encoded File
File extension BPK	Nero SecurDisc Public Key File
File extension BPW	Bitser Password File
File extension BSK	Nero SecurDisc Private Key File
File extension BTOA	Binary-to-ASCII Encoded File
File extension BVD	Bitdefender Vault File
File extension CCF	CryptLoad Container File
File extension CEF	CenturionMail Encrypted Package
File extension CGP	PixelCryptor Encrypted File
File extension CHML	Chameleon Encrypted Database File
File extension CIP	CryptoBuddy encrypted file
File extension CLX	Ceelox SecureMail Secure Message
File extension CNG	CryptoNG encrypted file
File extension CPIO	Unix CPIO Archive
File extension CPT	Ccrypt Encrypted Archive
File extension CRYPTED	WinOptimizer Encrypted File
File extension CRYPTRA	Cryptra Encrypted File
File extension DC4	ViaThinkSoft (De)Coder 4 File
File extension DCD	DisCryptor Encrypted Database
File extension DCF	Safetica Free Encrypted Archive
File extension DCO	DisCryptor encrypted archive
File extension DIM	DIME File
File extension DIME	Direct Internet Message Encapsulation File
File extension DLC	Download Link Container File
File extension E4A	Encrypt4all Archive
File extension EFL	Encryptafile Encrypted File
File extension EFR	Encryptafile Private Key File
File extension EFU	Encryptafile Public Key File
File extension EMC	Striata Reader Encrypted Document
File extension FPENC	FileProtect Encrypted File
File extension FSM	Splitty Master Split File
File extension GXK	Galaxkey Secured File
File extension HBX	BinHex Encoded File
File extension HEX	BinHex Encoded File
File extension HQX	BinHex 4.0 Encoded File
File extension HTPASSWD	Apache HTACCESS File
File extension JAC	JaStaCry Encrypted File
File extension JCRYPT	JCRYPT File
File extension KDE	KryptoStorage Container File
File extension KLQ	Kaspersky Anti-Virus quarantine file
File extension LASTLOGIN	Minecraft User Credential File
File extension LVIVT	Lvivtotoro Encrypted Game File
File extension MCRP	MobyExplorer Encrypted File
File extension MEO	MEO Encrypted Archive
File extension MFS	MetFS Encrypted File System
File extension MIM	Multi-Purpose Internet Mail Message File
File extension MIME	Multi-Purpose Internet Mail Extension
File extension MJD	Adobe Acrobat MIME Encoded Job Definition File
File extension MME	Multi-Purpose Internet Mail
File extension MSE	3ds Max Encrypted MAXScript File
File extension PACK	Pack200 Packed Jar File
File extension PDC	Lizard Safeguard Secure PDF File
File extension PKEY	PowerKey Encrypted File
File extension PSW6	Password Depot 6 File
File extension RDI	Rohos Disk Image File
File extension RSDF	RapidShare Download File
File extension RZK	Red Zion Key File
File extension RZX	File Crypt Encrypted File
File extension SDO	Signed Document
File extension SDOC	Sealed Word Document
File extension SEF	Steganos encrypted file
File extension SGZ	SigzaLock Encrypted File
File extension SHY	ShyFile Encrypted File
File extension SNK	Strong Name Key File
File extension SPD	Sealed Acrobat Document
File extension SPDF	Sealed PDF File
File extension SUF	Ccrypt Encrypted File
File extension SWITCH	Switch Package
File extension UEA	Protector Suite QL Encrypted Archive
File extension UU	Uuencoded File
File extension UUD	UUDecoded File
File extension UUE	Uuencoded File
File extension VDATA	Vaulty Vault File
File extension VLT	WinVault File Archive
File extension VP	Verilog Encrypted Source Code File
File extension WPE	WordPerfect Entrust Document
File extension XXE	XXEncoded File
File extension YENC	yEnc File
File extension YNC	yEnc Encoded File
File extension ZPS	Zebra Portable Safe File