Extract text from Ragnarok patch files (THOR)
To convert THOR patch files to another format, you need GRF Editor or other Game software.
To convert other file formats to the "Game Patch Archive" file type, you need software like GRF Editor or a similar tool.
The .thor file is primarily a highly compressed game update archive used by the Thor Patcher, a popular third-party auto-update utility for the classic MMORPG Ragnarok Online. Developed by Aeomin, these files are downloaded by the game launcher and merged directly into the player's main client container to patch sprites, textures, and scripts. To manually open, modify, or convert a .thor game patch, server administrators and modders use specialized community tools like GRF Editor or command-line utilities like zextractor.
Alternatively, if your personal photos or documents suddenly have a .thor extension, you have been hit by the notorious Locky or Ragnarok ransomware. The malware uses military-grade AES and RSA ciphers to lock your data. In both its game and malware context, the format is entirely proprietary and highly restricted. Standard archive utilities like WinRAR or 7-Zip cannot extract game assets from the patches, and standard document converters absolutely cannot unlock ransomware files.
For game files, the most common conversion target is merging the .thor data into a standard GRF (Gravity Resource File), or extracting its internal assets into common formats like ZIP, JPG, or TXT. Because this file format is either a closed game container or an encrypted hostage file, it is notoriously difficult to process. Standard online converters will fail completely. We will immediately analyze the file signature to determine if it is a safe Ragnarok game archive or a malicious Locky file. If it is a supported game patch, our engine can inspect the embedded contents and help you extract the underlying text, textures, or media formats whenever possible.
Convert.Guru analyzes your THOR file, detects the exact format, and lets you read the text inside.
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If you want to convert THOR file to , you can use GRF Editor or similar software from the "Game Update Archive File" category. In the File menu, look for Save As… or Export….
To convert files to THOR, try GRF Editor or another comparable tool in the "Game Update Archive File" 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 THOR converter.