The ACR file extension is related to the Acer eRecovery Management and used for its backup files.
ACR file extension - Acer eRecovery Management backup file
What is acr file? How to open acr files?
File type specification:
The ACR file extension is associated with the Acer eRecovery Management a system and data backup and recovery solution installed on Acer desktop and laptop computers. The *.acr file contains backup created by the eRecovery management.