The official, open-source tool designed for this format. Keka (macOS) : A popular alternative for Mac users.
If related to data exchange (like LTFO requirements), it may contain XML schemas or specific folder structures for game submissions. RLS - 2_comp.7z
In signal processing and statistics, this refers to algorithms used for adaptive filtering and audio compression. The official, open-source tool designed for this format
In industrial environments like Siemens COMOS, an RLS file contains paths for remote license management. RLS - 2_comp.7z