Extract text from Game and eBook files (OB)
To convert OB Data files to another format, you need The Witcher 3 or other Game software.
To convert other file formats to the "Serialized Game Save" file type, you need software like The Witcher 3 or a similar tool.
A .OB file is a multi-purpose file format most frequently used as a serialized game profile data file by the BioWare game engine and games like The Witcher 3: Wild Hunt. In other environments, it functions as an open eBook page file managed by Calibre, a BLOB data container for ComponentAce Absolute Database, or a raw port scan results file generated by the Masscan network scanner.
The main disadvantage of the .OB format is its proprietary and context-dependent nature. You cannot open a .OB file reliably without knowing its origin. Game save .OB files are serialized, meaning they are unreadable binary blobs without a hex editor or the original game engine. Open eBook .OB files are fragmented pages that standalone e-readers cannot open natively. Masscan outputs are raw, unformatted logs that require complex parsing before they are useful for network analysis.
To make this data accessible, conversion is necessary. For eBook reading, convert the scattered .OB collections to a unified EPUB or PDF. For network security logs, parse the Masscan .OB data to CSV or JSON for spreadsheet analysis. For game modding, developers often need to decompile .OB to XML to edit values.
Convert.Guru analyzes your OB file, detects the exact format, and lets you read the text inside.
Users also converted _OB, W3STRINGS, ISR and CY files.
If you want to convert OB file to OBJ, FBX, DAE, 3DS, MAX, BLEND, MA, MB, C4D, STL, PLY or WRL, you can use The Witcher 3 or similar software from the "Game Profile Data Storage" category. In the File menu, look for Save As… or Export….
To convert DWG, DAE, X3D, IGES, WRL, JT, SKP, 3DS, 3DM, OBJ, STEP or FBX files to OB, try The Witcher 3 or another comparable tool in the "Game Profile Data Storage" 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 OB converter.