Extract text from C02 files
To convert your C02 file to another format, you need Digital Music Notebook or other Audio software.
To convert other file formats to the "Proprietary Container" file type, you need software like Digital Music Notebook or a similar tool.
A .c02 file is a multi-purpose extension that creates significant confusion because it is shared by three completely different legacy and industrial software ecosystems.
The most common use (approx. 22%) is as a Digital Music Notebook file developed by Yamaha Corporation. These are secure, proprietary containers used to deliver digital sheet music, lyrics, and backing audio tracks.
The Problem: The Digital Music Notebook service has been discontinued. Because these files often contain the DMN Security Format (DRM), they are locked to the specific installation or hardware ID where they were purchased. Users frequently find themselves with a library of paid content they can no longer open, print, or play on modern versions of Windows or macOS. To salvage this content, the goal is often capturing the score to PDF or the backing track to MP3 via analog loopback methods before the legacy environment stops working entirely.
Alternatively, a .c02 file may be a texture analysis measurement file created by Exponent or similar software from Stable Micro Systems. These files contain raw rheology data - such as the force required to compress a cookie or the viscosity of a gel.
The Problem: This is binary engineering data. It cannot be opened in standard text editors or browsers. Researchers and QA engineers often struggle to share this data with colleagues who don't have the expensive analysis software installed. The best practice is converting these datasets to CSV or XLSX (Excel) to ensure the data remains accessible for statistical analysis.
Finally, the extension is occasionally seen as part of a split volume archive (e.g., archive.c02) created by the obsolete WinAce compression tool. These require all corresponding parts (.c00, .c01) to extract successfully.
Convert.Guru analyzes your C02 file, detects the exact format, and lets you read the text inside.
Users also converted C01, CO2, B00, SCORE and OSD files.
If you want to convert C02 file to ZIP, RAR, 7Z, TAR, GZ, BZ2, XZ, LZMA, CAB, ACE, ARJ or LHA, you can use Digital Music Notebook or similar software from the "Secure Music & Notation" category. In the File menu, look for Save As… or Export….
To convert XXE, 7Z, Z, PAK, LHA, DEB, UUE, TAR, LZH, ZIP, PKG or RAR files to C02, try Digital Music Notebook or another comparable tool in the "Secure Music & Notation" 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 C02 converter.