How to open D1L files

Did your computer fail to open a D1L file? We explain what D1L files are and recommend software that we know can open or convert your D1L files.

What is a D1L file?

The D1L file extension indicates to your device which app can open the file. However, different programs may use the D1L file type for different types of data.

While we do not yet describe the D1L file format and its common uses, we do know which programs are known to open these files, as we receive dozens of suggestions from users like yourself every day about specific file types and which programs they use to open them.

We are continually working on adding more file type descriptions to the site, so if you have information about D1L files that you think will help others, please use the Update Info link below to submit it to us - we'd love to hear from you!

Generic D1L

Unfortunately, we have not received enough suggestions for software that can open D1L files yet. If you know one, please use the Suggest a Program link below so we can update the page. Thanks!

Try a universal file viewer

Since we do not have any programs listed that we have verified can open D1L files, we suggest that you try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and very likely yours too! Download Free File Viewer.