Click the "Select File" button above, and choose your WTL file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert WTL to another file type
To convert your WTL file to another format, you need Windows Hardware Lab Kit or other Developer software.
Convert a file to WTL
To convert other file formats to the "Hardware Test Log" file type, you need software like Windows Hardware Lab Kit or a similar tool.
About WTL files
A .WTL file is primarily a Windows Hardware Lab Kit (HLK) test log, generated during the rigorous certification process for Windows drivers and hardware. These files utilize a structured XML format to record the granular details of test executions, including pass/fail status, system telemetry, and error stack traces. While the underlying format is text-based XML, opening a raw .WTL file in a standard text editor like Notepad++ often results in an unreadable wall of tags and attributes, making manual debugging inefficient. Users typically encounter these files when validating hardware compatibility but lack the specific Windows HLK Studio environment required to visualize the results as a coherent report. To share these results with stakeholders who do not have the heavy HLK infrastructure installed, the best workflow is to convert .WTL files to HTML for browser-based viewing, PDF for immutable certification records, or standard TXT for quick error searching without the XML syntax overhead. For automated parsing or database ingestion, keeping the file as XML (or converting to JSON) is ideal.
Convert.Guru analyzes your WTL file, detects the exact format, and lets you read the text inside.
If you want to convert WTL file to OBJ, FBX, DAE, 3DS, MAX, BLEND, MA, MB, C4D, STL, PLY or WRL, you can use Windows Hardware Lab Kit or similar software from the "Hardware Certification Logging" category. In the File menu, look for Save As… or Export….
To convert DWG, DAE, X3D, IGES, WRL, JT, SKP, 3DS, 3DM, OBJ, STEP or FBX files to WTL, try Windows Hardware Lab Kit or another comparable tool in the "Hardware Certification Logging" category.
The WTL 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 WTL converter.