Click the "Select File" button above, and choose your LLG file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert LLG to another file type
To convert your LLG file to another format, you need Alientech K-Suite or other Data software.
Convert a file to LLG
To convert other file formats to the "Diagnostic Log File" file type, you need software like Alientech K-Suite or a similar tool.
About LLG files
The .LLG file extension serves multiple specialized industries, most commonly acting as a proprietary log file for Alientech ECU tuning tools like K-TAG and KESS. These files record communication data during the reading or writing of a vehicle's Engine Control Unit. The real problem for users is that these logs are often binary or encrypted, meaning they cannot be opened in standard text editors like Notepad or analyzed in Microsoft Excel without conversion. They are strictly designed for the K-Suite software environment.
A significant secondary use is within the surveying industry, where .LLG files store raw measurement data generated by Leica Geosystems equipment. Like the automotive logs, these contain coordinate geometry that requires specific processing software like Leica Infinity to interpret. Users frequently need to convert these files to CSV, TXT, or DXF to import the data into CAD software or spreadsheets. Less commonly, an .LLG file may be a ladder logic diagram from Bytronic Ladsim, used in educational simulations. For these files, users typically seek a conversion to PDF or image formats to share the logic diagrams without requiring the original simulation software.
Convert.Guru analyzes your LLG file, detects the exact format, and lets you read the text inside.
If you want to convert LLG file to RLG, CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT or DB, you can use Alientech K-Suite or similar software from the "Hardware Data Logging" 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 LLG, try Alientech K-Suite or another comparable tool in the "Hardware Data Logging" category.
The LLG 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 LLG converter.