The Free MOOS Project Viewer is a no-cost software tool that enables users to view any MS Project file type from any version of Microsoft Project. This includes .mpp, .mpt, .mpx, and .xml formats for versions 2000, 2003, 2007, and 2010.

It's easy to use and runs on any Java-enabled platform, including Windows, Mac OS X, and Linux. This makes it the perfect solution for project stakeholders who need to view project details on multiple devices.
With Free MOOS Project Viewer, you get the ability to view project details in a dynamic way that isn't possible with printed materials or static reports in different formats like html, pdf, and excel. You can zoom in/out, collapse/expand, show/hide, resize, and more. This gives you a free tool to view any Microsoft Project file, even online directly from your browser.
The software is also incredibly valuable because it allows you to save money by not having to purchase Microsoft Project. There are many MS Project viewers on the market, some of which are freeware and others that are commercial. Free MOOS Project Viewer provides the best value for a free MS Project viewer.
By using Free MOOS Project Viewer, you'll be able to open any and all Microsoft Project files and MS Project versions. You won't need to have MS Project installed on your computer, and the easy-to-use interface is even simpler than Microsoft Project's interface. Additionally, the Gantt chart timescale range is wide, from minutes to years, and you can show/hide, arrange, and resize columns. Colors can be shown on task bars in the Gantt chart as well.
Lastly, the software runs on multiple platforms (Windows, Mac OS X, Linux) and is backed by 24-hour support. Overall, Free MOOS Project Viewer is an excellent software that provides users with the ability to view Microsoft Project files in a dynamic, easy-to-use way, and it's completely free.
Version 4.2.0: Bug fixes