What is an .MLS file? The .mls file extension is mostly related to Milestones Simplicity Project. Milestones Simplicity is software to create schedules for planning projects and managing deadlines. The MLS files contain text, icons, and images used in the schedules.
The MLS file extension has five file types seen as the Milestones Simplicity File format. The MLS File Extension can be opened with five programs, with Milestones Professional as the main one. The MLS File Extension is listed as Data Files, but also as Uncommon Files or Developer Files sometimes. MLS files can be viewed on Windows, Mac, iOS systems, on both desktops and mobiles. With a low popularity rating, MLS files are not very common.
You can launch a .mls file by double-clicking it. If file associations are set up correctly, the MLS file will open in the application meant to handle it. You may need to download or purchase this application if you don’t have it. Or you may have the right application but need to associate .mls files with it in Windows.
Programs that open or reference MLS files include Milestones Simplicity.
Note: The MLS playlist format has a known vulnerability allowing arbitrary code execution. Do not open unknown MLS files.