Extract text from ULX files
To convert your ULX file to another format, you need Gargoyle or other Game software.
To convert other file formats to the "Virtual Machine Bytecode" file type, you need software like Gargoyle or a similar tool.
A .ULX file is primarily a 32-bit interactive fiction game file designed to be run by the Glulx virtual machine. Unlike older Z-machine files, .ULX removes file size and memory limits, allowing for larger, more complex text adventures with graphics and sound. Because these are compiled binary bytecode files (similar to an EXE or JAR but for a specific VM), you cannot simply "open" them in a text editor like Notepad or convert them directly to DOCX without losing the interactive logic.
The real problem for users is that .ULX files are useless without a specific interpreter. Operating systems do not natively recognize them. To play the game, you typically need software like Gargoyle or Windows Glulxe. If you are looking to "convert" the file for web distribution, the best approach is using Quixe, a Javascript interpreter that wraps the .ULX data into playable HTML and JavaScript for browsers.
Secondary Use Case: In industrial settings, a .ULX file may be a data log archive from Xylem Avensor monitoring systems. These are frequently just renamed ZIP archives containing CSV or XML logs. If you suspect this is your file type, simply renaming the extension from .ULX to ZIP often allows you to extract the raw data inside.
Convert.Guru analyzes your ULX file, detects the exact format, and lets you read the text inside.
If you want to convert ULX file to , you can use Gargoyle or similar software from the "Interactive Fiction Game Data" category. In the File menu, look for Save As… or Export….
To convert files to ULX, try Gargoyle or another comparable tool in the "Interactive Fiction Game Data" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our ULX converter.