Extract text from Game resource archives (GRP)
To convert GRP Group files to another format, you need Build Engine or other Game software.
To convert other file formats to the "Game Resource Archive" file type, you need software like Build Engine or a similar tool.
The .GRP file extension is most commonly associated with Game Resource Group Archives. These files act as proprietary container formats used to bundle various game assets - such as textures, sounds, maps, and configuration files - into a single large file. Historically, the format became famous through the Build Engine, which powered legendary 1990s titles like Duke Nukem 3D published by 3D Realms. Modern implementations also exist, such as the Dagor Engine used by Gaijin Entertainment for games like Crossout. Additionally, .GRP was used in Windows 3.x as a Program Manager group file and by various email server software as a mailing list group file.
The main disadvantage of .GRP files is that they are proprietary, application-specific containers. You cannot open them directly in modern operating systems or standard archiving tools like WinRAR or 7-Zip without specialized plugins. They often use obscure proprietary compression, making them bulky and difficult to share. For modders or data miners, extracting the contents requires hunting down obsolete command-line tools or fan-made extractors.
To make the contents usable, you usually need to extract or convert the .GRP archive into standard formats. If you want to access the internal game assets, extract them to standard formats like PNG for textures, WAV for audio, or TXT for data. If you just need to repackage the assets for easier sharing, convert the file into a standard ZIP or 7Z archive.
Convert.Guru analyzes your GRP file, detects the exact format, and lets you read the text inside.
Users also converted QRP, BIN, BLK, ZIP, PDF, XLSX, DWG, SIG, TXT and ENC files.
If you want to convert GRP file to SYS, DLL, EXE, DRV, VXD, 386, COM, BAT, CMD, SCR, PIF or LNK, you can use Build Engine or similar software from the "Game Asset Container" category. In the File menu, look for Save As… or Export….
To convert MSI, EXE, REG, MST, LNK, CAB, CAT, DRV, INF, SYS, MSU or DLL files to GRP, try Build Engine or another comparable tool in the "Game Asset Container" 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 GRP converter.