.FLK File

The flk file extension is related to Folder Lock program, developed and sold by  NewSoftwares Inc.

The flk file contains encrypted data. These files are password protected and safe-guarded against deletion.

Files with flk file extension can mainly be found as encrypted files protected by the Folder Lock program.

How to open:

Use Folder Lock to work with the *.flk files.

How to convert:

Probably cannot be converted to anything else.