ADK

OS/2 saved SKF format
File type: Backup file
An adk file extension is related to the OS/2 operating system. An adk file contains floppy disk image stored in SKF file format.
Found 2 different file type records with the same adk filename suffix.
What is adk file?
File type category:
Backup file
Date updated: June 27, 2018
The adk file extension is associated with the OS/2 operating system for IBM-PC compatible computers developed by IBM.
The .adk file is a floppy disk image.
The OS/2 operating system is obsolete product without any support from developer.
Suggested software to open adk file:
Associated software actions with the adk file
Software applications that handle other tasks involving adk files:
OS/2 (Other operating systems or devices)
Angry Duck ransomware affected file
File type category:
Ransomware encrypted file
Date updated: October 31, 2016
File extension adk seems to be also used by a ransomware labeled as Angry Duck, which encrypts users files and then changes their suffix. It then demands 10 BC for the decryption key.
How to open adk file?
Unfortunately, we do not know about any decryptor for Angry Duck at this time.
How to convert adk file?
There is no way to convert the data unless you manage the decrypt the files first.