Click the "Select File" button above, and choose your COOL file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert COOL to another file type
To convert your COOL file to another format, you need Cooler or other Data software.
Convert a file to COOL
To convert other file formats to the "Encrypted / Genomic Data" file type, you need software like Cooler or a similar tool.
About COOL files
The .cool extension primarily indicates a critical security event: files encrypted by the Phobos, STOP/Djvu, or MedusaLocker ransomware families. In this scenario, the file is not a new format but rather a standard document (like DOCX, JPG, or PDF) that has been locked using strong encryption algorithms. The major disadvantage is immediate inaccessibility; users cannot open, edit, or convert these files using standard software without a decryption key or specialized recovery tool. Alternatively, in the field of bioinformatics, a .cool file represents a genomic contact matrix generated by the Cooler Python package. Stored within an HDF5 container, these files efficiently handle sparse Hi-C data but are often too technical for general use. They require specific command-line tools for visualization, prompting researchers to convert them to multi-resolution .MCOOL files for web viewing in HiGlass or to plain text formats like TSV for analysis in standard statistical software.
Convert.Guru analyzes your COOL file, detects the exact format, and lets you read the text inside.
If you want to convert COOL file to HIC, TMP, TEMP, CACHE, LOG, BAK, OLD, NEW, PART, DOWNLOAD, CRDOWNLOAD or LOCK, you can use Cooler or similar software from the "Ransomware Encryption Marker" category. In the File menu, look for Save As… or Export….
To convert DEVICE, CACHE, SOCK, SYMLINK, PID, MOUNT, FIFO, LOG, PIPE, TMP, JUNCTION or TEMP files to COOL, try Cooler or another comparable tool in the "Ransomware Encryption Marker" category.
The COOL 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 COOL converter.