Click the "Select File" button above, and choose your LEN file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert LEN to another file type
To convert your LEN file to another format, you need Esko ArtiosCAD or other Raster Image software.
Convert a file to LEN
To convert other file formats to the "Prepress Bitmap" file type, you need software like Esko ArtiosCAD or a similar tool.
About LEN files
The .LEN extension primarily refers to a Flexographic Plate Image, a specialized high-resolution bitmap format generated by Esko RIP software (like Imaging Engine or FlexRip). These files are the industry standard for creating flexographic printing plates used in packaging.
Because .LEN files are designed for industrial laser engravers (CDI), they are often 1-bit bitmaps with massive resolutions (up to 4000 dpi) and proprietary compression. This can lead to major headaches for users: standard image viewers like Windows Photos or Mac Preview cannot open them, appearing as corrupt files or solid black boxes. Opening them natively requires expensive prepress suites like Esko ArtiosCAD or the specific Esko Bitmap Viewer.
To view these proofs without specialized licensing, the best solution is to convert the .LEN file to TIFF (to preserve the high-resolution detail for inspection) or PDF and PNG (for easy emailing and client approval).
A smaller percentage of these files are Optical Lens Design files created by software like OSLO or Synopsys CODE V. These contain mathematical definitions of lens curvature and glass properties. For these, conversion to text-based reports or standard CAD formats is typically required for interoperability.
Convert.Guru analyzes your LEN file, detects the exact format, and lets you read the text inside.
If you want to convert LEN file to TIFF, SHP, KML, KMZ, GPX, GEOJSON, TOPOJSON, TIF, ECW, SID, IMG or DEM, you can use Esko ArtiosCAD or similar software from the "Flexographic Plate Image" category. In the File menu, look for Save As… or Export….
To convert LAZ, KMZ, DTM, CSV, DEM, PRJ, LAS, GPX, DSM, SHP, DBF or KML files to LEN, try Esko ArtiosCAD or another comparable tool in the "Flexographic Plate Image" category.
The LEN 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 LEN converter.