Decompile Progress .r File
Before you decompile a .r file, consider the law. The Progress License Agreement typically prohibits reverse engineering:
“Customer shall not reverse engineer, decompile, or disassemble the Software.”
However, if the software was developed internally by your own company and you simply lost the source code, most courts view decompilation for maintenance or interoperability as fair use (citing EU Software Directive 2009/24/EC and US Sega v. Accolade).
Safe path:
In R, a .r file (usually .RData) is a binary snapshot of your workspace:
It is not a script. It doesn’t store the commands you typed—only the result of running them.
However, functions you wrote and sourced are stored as their source code (because R stores functions with their body as an expression tree). That’s your lifeline. decompile progress .r file
You get 70-90% of the original source code. You will see:
If the .r file is a proprietary binary format from specific software (e.g., an old game, a specific engineering tool), standard text editors will show gibberish.
The "Static Analysis" Approach:
Decompilation of .r files varies significantly depending on whether you are working with Progress OpenEdge (r-code) or the R Programming Language. 1. Progress OpenEdge .r Files (r-code)
In this context, .r files are compiled "r-code" executables. Progress Software does not officially support reverse engineering these files.
Current Progress: Full decompilation to original source (.p or .w) is difficult because the compiler strips comments, variable names, and optimizes structures. Available Tools: Before you decompile a
Progress R-code Decompiler: A third-party tool that can extract text, better handle ON processing, and unify parameter definitions.
Proview / Fast4GL: Older utilities often cited in community forums for converting r-code back to a "workable" (though not perfect) source.
Key Limitations: Decompiled code may replace readable names with meaningless identifiers (e.g., double 6m2jb) and replace structured loops with goto statements. 2. R Language .r Files (Scripts/Bytecode)
Standard .R files are usually plain-text scripts, but "decompilation" typically refers to extracting source code from compiled R packages or bytecode. PROGRESS R-code Decompiler
Given the difficulty of decompiling Progress .r files, modern best practice has shifted to refactoring by observing behavior.
Instead of decompiling:
This approach is often faster than cleaning up decompiled spaghetti code from 1998.
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.
