Encryption is a robust Hider feature that protects your files from unauthorized access and ensures the security of sensitive data. To protect the confidentiality and integrity of data, encryption converts plain text into a secret code or cipher you should use your file explorer's encryption method. 

The ASD File Manager app offers file encryption functionality for the files you wish to secure on your Android smartphone. Files stored in the secret folder "callock" of this file manager app for Android are secured through a detailed encoding algorithm. You have the flexibility to extract your files from the secret folder and return them to their original location whenever you wish.

For a better understanding here is the importance of file encryption described briefly in the given visual.