REZ Converter

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How to extract text from your REZ file

1. Click the "Select File" button above, and choose your REZ file.
2. You’ll see a preview, if available.
3. Click the "Convert file to..." button to extract text information.

About REZ files

The .REZ file extension is primarily associated with the LithTech Game Engine, developed by Monolith Productions. It functions as a proprietary resource archive, acting as a container similar to a ZIP or RAR file, but structured specifically for game performance. These archives bundle thousands of game assets - including DTX textures, WAV audio, maps, and character models - into a single file to reduce disk fragmentation and loading times. You will encounter these files when modding classic titles like Alien vs. Predator 2, No One Lives Forever, or TRON 2.0.

While efficient for the game engine, .REZ files are a "black box" for standard users. They cannot be opened with typical archivers like 7-Zip or WinRAR without specific plugins, making the assets inside inaccessible for viewing or editing. To access the content, you must first "unpack" or convert the archive into a standard folder structure using tools like Dragon UnPACKer or RezMgr. Once extracted, the internal files often require further conversion (e.g., converting proprietary DTX images to PNG for editing, or raw audio to MP3). For scientific users, a .REZ file may alternatively be a calculated airfoil polar data file generated by XFOIL, used in aerodynamic analysis, which requires distinct plotting software to visualize.

Convert.Guru analyzes your REZ file, detects the exact format, and lets you read the text inside.

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