Click the "Select File" button above, and choose your LLB file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert LLB to another file type
To convert LLB libraries to another format, you need LabVIEW or other Developer software.
Convert a file to LLB
To convert other file formats to the "Virtual Instrument Library" file type, you need software like LabVIEW or a similar tool.
About LLB files
The .llb file extension is primarily used for LabVIEW Virtual Instrument Library files. Developed by National Instruments, these files act as uncompressed archives that bundle multiple Virtual Instruments (VIs) into a single container. This helps developers distribute complex visual code architectures used in industrial automation and test equipment control via LabVIEW. A secondary, older use for the .llb extension is the OrCAD PCB Layout Library Database, which stores footprint data for printed circuit board design in OrCAD. The main disadvantage of the .llb format is that it is a highly specialized, proprietary container. Opening and editing LabVIEW .llb files requires a heavy, expensive installation of the LabVIEW environment. Because it bundles code in a proprietary binary block, standard version control systems like Git cannot track line-by-line changes inside the archive. This limit forces many modern developers to abandon .llb files entirely. Converting an .llb file generally means extracting its contents or migrating the library to a modern format. The best conversion targets for LabVIEW files are standard vi files (individual Virtual Instruments) or modern .lvlib project libraries. You will need the original LabVIEW software to perform this extraction. For OrCAD .llb files, users typically migrate the library data to modern dra or pad format footprints within the Cadence ecosystem. This file format is exceptionally difficult to open or convert because standard online converters fail to process the proprietary binary schemas. Often, only the original software can properly read or export the data. However, convert.guru can still identify the file format, inspect the file, and show text or internal content. Just drag and drop your file to see what it is and convert it if supported. If our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible.
Convert.Guru analyzes your LLB file, detects the exact format, and lets you read the text inside.
If you want to convert LLB file to STONE, JD, JS, TS, PY, JAVA, CPP, C, CS, PHP, RB or GO, you can use LabVIEW or similar software from the "Virtual Instrument Library Archive" category. In the File menu, look for Save As… or Export….
To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to LLB, try LabVIEW or another comparable tool in the "Virtual Instrument Library Archive" category.
The LLB 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 LLB converter.