Files with dale suffix are encrypted user files affected by the Chip ransomware that was inspired by the Chipmunks cartoon.
DALE file extension - Chip ransomware affected file
What is dale file? How to open dale files?
File type specification:
File extension dale seems to be since December 2016 used by a ransomware labeled as Chip, which was clearly inspired by the Chipmunks cartoon.
Much like similar ransomware it encrypts users files then tries to ransom the decryption key to the victim, with the ransom notes being saved in a DALE_FILES.TXT file.