.RSL file extension
This is the basic program to work with .RSL extension
.RSL extension is also supported by the following programs:
Paradox Runtime lets you view, enter, and edit database records.
DBArtisan helps your business by providing powerful tools for your database.
An application which analyzes and manages your spreadsheet data.
Rapid SQL XE3 allows you to develop on all major DBMS platforms.
truSpace 7.6 is one of the most complete and powerful program for creating 3D.