.REX File Extension
File Type 1ReCycle Loop File
What is a REX file?
Audio loop format used by ReCycle, a sampled loop creation and editing program; stores audio data and loop slicing information; REX files can be quantized, have the tempo changed, and can be tuned or detuned.
File Type 2Rexx Source File
.REX File Association 2
Source code file written in the Restructured Extended Executor (Rexx) programming language, a scripting and macro language primarily used to generate reports and process data; contains variables, functions, and other statements that tell the program how to function.
If you change the permissions of the REX file to "executable", you will be able to run the file. REX files are placed in the REXX source library in the Workgroup location by default.
NOTE: There are several free Rexx interpreters available, such as Regina, Reginald, and BRexx, that can open the REX fie.