MOOS Project Viewer is described as 'Microsoft Project viewer that can open any MS Project file type (.mpp, .mpt, .mpx, .xml) for any Microsoft Project version (2000, 2003, 2007, 2010). Available views: WBS, Gantt chart, task sheet, resource sheet, resource usage, tracking Gantt' and is a project management tool in the business & commerce category. There are more than 10 alternatives to MOOS Project Viewer for a variety of platforms, including Web-based, Windows, Mac, Linux and Self-Hosted apps. The best MOOS Project Viewer alternative is LibrePlan, which is both free and Open Source. Other great apps like MOOS Project Viewer are Project Viewer 365, RDI-Manager, FoxPlan and jxProject.