A family of Microsoft relational database management systems designed for ease of use.
GG COS 001 --
When you use the term, "Project Online", I suspect you are actually describing the new project management tool named Project for the Web. If this is true, then there is no way to view Microsoft Project MPP files using Project for the Web. Keep in mind that this tool is very new and is a "work in progress" in many ways, with Microsoft planning on adding lots of new features in the coming years. As it exists currently, there is no way to import or export Project for the Web data with another application. Perhaps Microsoft will add this functionality some day, but this functionality does not current exist in Project for the Web. Sorry, but hope this helps.