Click the "Select File" button above, and choose your L file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert L to another file type
To convert L Resource files to another format, you need ActivInspire or other Compressed software.
Convert a file to L
To convert other file formats to the "Resource Pack / Script" file type, you need software like ActivInspire or a similar tool.
About L files
The .l file format serves two highly distinct primary purposes. Most commonly, it is an ActivInspire Resource Pack used by Promethean World interactive whiteboard software for educators. These files act as compressed archives containing images, templates, and educational assets. Alternatively, in software development, a .l file is a Lex Source File used by lex or flex to generate lexical analyzers in C or C++. Users often face significant challenges with .l files. The ActivInspire format is proprietary, meaning you cannot natively open it on standard mobile devices or modern web browsers without installing heavy, specialized educational software. The files can be large, and sharing them with students or colleagues who lack the software is a common frustration. Lex files, while being plain text, require specific command-line compiler tools to process, which is intimidating for non-developers. To solve these limitations, conversion is highly recommended. For ActivInspire files, converting or extracting them to standard ZIP archives allows you to access the internal PNG, JPG, or PDF media elements directly. For Lex files, converting them to C or standard TXT makes the code readable in any text editor. Because the ActivInspire .l format is a closed, proprietary archive, standard online converters often fail to process it properly. Often, only the original software can properly read or export the structured lesson 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 identify the format, view it, and convert it when possible. If our analysis detects a supported underlying or embedded format - such as standard media files inside the resource pack - viewing or conversion may still be possible.
If you want to convert L file to GAL, CM3, G, KL, DL, MP3, WAV, AAC, FLAC, OGG, WMA or M4A, you can use ActivInspire or similar software from the "Resource Archive or Source Code" category. In the File menu, look for Save As… or Export….
To convert MIDI, AAC, TTA, AU, WV, DTS, MID, FLAC, RA, MP3, PCM or WAV files to L, try ActivInspire or another comparable tool in the "Resource Archive or Source Code" category.
The L 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 L converter.