Click the "Select File" button above, and choose your ONETOC2 file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert ONETOC2 to another file type
To convert ONETOC2 index files to another format, you need Microsoft OneNote or other Data software.
Convert a file to ONETOC2
To convert other file formats to the "Index and Structure File" file type, you need software like Microsoft OneNote or a similar tool.
About ONETOC2 files
The .onetoc2 file functions as an index and table of contents used by Microsoft OneNote to organize the sections of a digital notebook. It strictly manages the display order, color-coding, and hierarchical structure of the notebook sections. Users often attempt to convert these files to standard document formats when sharing notes with colleagues. However, a major disadvantage of the .onetoc2 format is that it contains no actual text, images, or note data. All notebook content is stored in accompanying one files within the same directory. Sending only a .onetoc2 file is a common error that leaves the recipient with an empty, unreadable notebook. Standard online converters fail to process this format because they attempt to extract document text from a structural metadata file. To properly share notes, you must export the notebook directly from OneNote to a PDF or DOCX file. Because this is a closed, proprietary format heavily dependent on its parent directory, it is difficult to open or convert externally. Often only the original software can properly read or export the data. Just drag and drop your file to convert.guru to identify the format, inspect the file, and show text or internal content. If our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible.
Convert.Guru analyzes your ONETOC2 file, detects the exact format, and lets you read the text inside.
If you want to convert ONETOC2 file to INI, CFG, CONF, CONFIG, JSON, XML, YAML, YML, TOML, ENV, PROPERTIES or RC, you can use Microsoft OneNote or similar software from the "Notebook Table of Contents" category. In the File menu, look for Save As… or Export….
To convert ZSHRC, CONF, RCFILE, GITCONFIG, RC, PLIST, BASHRC, CONFIG, PROFILE, INI, PREFS or CFG files to ONETOC2, try Microsoft OneNote or another comparable tool in the "Notebook Table of Contents" category.
The ONETOC2 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 ONETOC2 converter.