Extract text from Firmware database files (CHECK)
To convert CHECK Firmware files to another format, you need SQLite or other Database software.
To convert other file formats to the "Firmware Data File" file type, you need software like SQLite or a similar tool.
The .check extension typically disguises one of three distinct file types, creating immediate confusion for users trying to open it. Most commonly, it is a SQLite database used by satellite receivers running ALI Corp chipsets to store channel lists, transponder frequencies, and firmware settings. Manufacturers often use this extension to prevent users from easily modifying system data, meaning standard tools like Microsoft Excel cannot open it directly.
Alternatively, your file might be a temporary Windows executable created by the NiceHash Miner updater, or a compiled unit test program generated by the Check unit testing framework for C code. In these cases, the file contains binary machine code, not human-readable text.
For the satellite database variant, the best workflow is converting the file to CSV or XLSX (Excel) to edit channel lists comfortably, or to SQL for database migration. If you are dealing with the executable variants (NiceHash or Unit Test), "conversion" is generally impossible as they are designed to be executed, not edited; however, developers may inspect them using hex editors to extract string data.
Convert.Guru analyzes your CHECK file, detects the exact format, and lets you read the text inside.
Users also converted CHK, SQLITE, DB-WAL and QDB files.
If you want to convert CHECK file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use SQLite or similar software from the "Satellite Firmware Database" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to CHECK, try SQLite or another comparable tool in the "Satellite Firmware Database" 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 CHECK converter.