Decompile Progress .r File ((install)) Guide

Decompiling Progress: How to Recover R Source Code from a `.r` File

You’ve lost your script, but you have a .r file. Now what?

Every R user knows the sinking feeling: your R script is gone (unsaved, crashed, overwritten), but you still have a workspace image—a .r or .RData file. Can you decompile it back into human-readable source code?

The short answer: Not fully, but you can recover a surprising amount.

Let’s walk through what a .r file actually is, why “decompilation” is tricky, and a practical step-by-step workflow to salvage your progress. decompile progress .r file

Scenario 2: REBOL Programming Language

REBOL (Relative Expression Based Object Language) uses the .r extension for scripts. These are often distributed in a binary format (compressed) to hide source code.

The Result:

You get 70-90% of the original source code. You will see:

All variable declarations (DEFINE VARIABLE ...)
Main logic flow (FOR EACH ... END, IF ... THEN ... ELSE)
Database accesses.

Steps:

Identify the Progress Version
Use proversion or check the .r file header: First 4 bytes often indicate version. Decompiling Progress: How to Recover R Source Code from a
Backup the .r file
Decompiling is sometimes destructive (the tool may fail and corrupt memory).

Run the decompiler

mpro -db sports2000 -p decompile.r -param myProgram.r

Review output
The decompiler will create myProgram.decompiled.p. All variable declarations ( DEFINE VARIABLE
Manual repair
Fix missing variable types, closed procedures, and broken loops. Plan for at least 2 hours per 500 lines of decompiled code.