Click the "Select File" button above, and choose your CFB file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert CFB to another file type
To convert CFB Compound files to another format, you need Microsoft Office or other Data software.
Convert a file to CFB
To convert other file formats to the "Compound Binary Container" file type, you need software like Microsoft Office or a similar tool.
About CFB files
The .CFB (Compound File Binary) format is a structured storage container primarily used by Microsoft Corporation. It functions like a mini-file system inside a single file, typically storing Object Linking and Embedding (OLE) data for legacy Microsoft Office applications. Other uses include lighting fixture libraries for CAST Wysiwyg, forensic data reports for Cellebrite UFED, and 3D printing data for Cubicreator. This format is notoriously difficult to handle outside its native ecosystem. It is proprietary, heavily complex, and relies on internal nested hierarchies that standard web browsers and flat-file text editors cannot parse. It is an older standard, largely superseded by Office Open XML (OOXML), making it a frustrating legacy format. Users usually need to convert these files to extract the contained data or transform the documents into modern, accessible formats like PDF, DOCX, or XLSX. Converting these containers can result in the loss of unsupported embedded objects or macros. Because .CFB files are complex structured containers rather than standard documents, they are difficult to open or convert online. Often, only the original software or a specialized Microsoft parser can properly read or export the data. If our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible.
Convert.Guru analyzes your CFB file, detects the exact format, and lets you read the text inside.
If you want to convert CFB file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Microsoft Office or similar software from the "Structured Binary Container Storage" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to CFB, try Microsoft Office or another comparable tool in the "Structured Binary Container Storage" category.
The CFB Converter Story
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 CFB converter.