Click the "Select File" button above, and choose your BL file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert BL to another file type
To convert BL Archives to another format, you need SeaSave & Various or other Data software.
Convert a file to BL
To convert other file formats to the "Proprietary Archive or Log" file type, you need software like SeaSave & Various or a similar tool.
About BL files
The .BL file extension is used by several distinct, proprietary systems, making it a highly fragmented format. Most commonly, it functions as a game data archive, such as Nintendo's SARC format, Far Cry 6 bundle files, or Avalanche Engine archives for Just Cause 3. It is also widely used as a CTD instrument bottle log file generated by Sea-Bird Scientific SeaSave software, a Gerber PCB data file in circuit design software, or an Electronic Data Interchange (EDI) delivery note. Because the .BL extension is fragmented across video games, oceanographic instruments, and circuit board design software, it lacks a universal standard. Game archive .BL files are proprietary and heavily compressed, making them impossible to open natively in standard operating systems. Scientific bottle logs require specialized, expensive software environments to read the sensor data. Standard online converters completely fail to process these files because they cannot automatically guess which of the many .BL variants you uploaded. If your .BL is a Gerber PCB file, converting it to PDF or GBR for viewing is the best path. For EDI delivery notes, parsing it into XML or CSV is standard. Game archives usually require specific community modding tools to unpack the data into PNG, WAV, or TXT assets. This file format is difficult to open or convert because often only the original software 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 BL file, detects the exact format, and lets you read the text inside.
If you want to convert BL file to KL, LPL, TMP, TEMP, CACHE, LOG, BAK, OLD, NEW, PART, DOWNLOAD or CRDOWNLOAD, you can use SeaSave & Various or similar software from the "Multi-purpose Data Archive" 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 BL, try SeaSave & Various or another comparable tool in the "Multi-purpose Data Archive" category.
The BL 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 BL converter.