Extract text from RAX files
To convert your RAX file to another format, you need TotalChrom or other Data software.
To convert other file formats to the "Chromatography Raw Data" file type, you need software like TotalChrom or a similar tool.
The .rax extension is a shared filename used by two distinct and notoriously rigid proprietary formats.
The most statistically common use (approx. 36%) is as a Gas Chromatography Raw Data file generated by PerkinElmer TotalChrom software. These files contain raw signal data from lab instruments. A common issue here is the "black box" nature of the format; without a licensed copy of TotalChrom (which is expensive and enterprise-focused), the data is inaccessible. Scientists and data analysts often need to convert these to CSV, XLS, or CDF (AIA format) to process the results in Microsoft Excel or generic LIMS platforms.
The second common use (approx. 22%) is as a RealAudio Secure file from RealNetworks. These are legacy audio files, often used for music store downloads in the early 2000s. The critical disadvantage here is Digital Rights Management (DRM). Unlike standard RA or RM files, a .rax file often requires the original licensing keys to play. If the file is unencrypted, it can be converted to MP3 or WAV for modern playback; if encrypted, it is often unusable.
Check your file size and header: if it's small (KB) and text-heavy, it's likely data. If it's larger (MB), it's likely audio.
Use Convert.Guru to open and convert your RAX file.
Users also converted WMA, CH, RX and EXC files.
If you want to convert RAX file to MP3, WAV, AAC, FLAC, OGG, WMA, M4A, AIFF, OPUS, ALAC, APE or WV, you can use TotalChrom or similar software from the "Chromatography Data Storage" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to RAX, try TotalChrom or another comparable tool in the "Chromatography 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 RAX converter.