Extract text from VSL files
To convert your VSL file to another format, you need Vsmart Player or other Video software.
To convert other file formats to the "Encrypted Lecture" file type, you need software like Vsmart Player or a similar tool.
The .vsl extension is a classic example of proprietary file locking, most frequently encountered (approx. 61%) as an Encrypted Video Lecture distributed by educational platforms like Vsmart Academy. These files are essentially video streams (often H.264 or MP4) wrapped in a Digital Rights Management (DRM) layer. While this secures the content for the provider, it creates a frustrating user experience: you cannot play the file in versatile media players like VLC media player, you cannot cast the video to a TV, and you are often tethered to a specific, clunky software interface. Users invariably want to convert these to standard MP4 or MKV files to regain control over playback speed and device compatibility.
A significant minority of these files (15%) are totally different: they are Visual Lighting Design projects created by software from Acuity Brands. These contain complex 3D lighting data and photometry settings stored in a Microsoft Compound File format. The friction here is accessibility - viewing these designs requires installing niche, industry-specific software. For broad distribution to clients or contractors who do not own Visual Lighting, the best practice is converting the visual output to PDF for documentation or DXF for integration into AutoCAD.
Convert.Guru analyzes your VSL file, detects the exact format, and lets you read the text inside.
Users also converted XLSX, DLL, MP4, VCX, WIXLIB and PRO4 files.
If you want to convert VSL file to DLL, SO, DYLIB, BUNDLE, PLUGIN, XPI, CRX, SAFARIEXTZ, APPEX, KEXT, SYS or DRV, you can use Vsmart Player or similar software from the "Secure Video Distribution" category. In the File menu, look for Save As… or Export….
To convert LV2, DYLIB, VST, AAX, DRV, TDE, LADSPA, BUNDLE, AU, DLL, RTAS or SO files to VSL, try Vsmart Player or another comparable tool in the "Secure Video Distribution" 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 VSL converter.