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Editorial Team
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Asked: 2026-06-16T01:27:03+00:00

I have a .mpp file that has a master project and sub-projects. I want

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I have a “.mpp” file that has a master project and sub-projects. I want to be able to modify and read the sub-projects, without having to call “FileOpen” for each sub-project.

I see that Globals.ThisAddin.Application.ActiveProject has a SubProjects collection, but each element seems to be of type sub-project.

The problem with FileOpen is that it visually pops up a new instance of Microsoft Project.

Basically, is it possible to call FileOpen (or any other similar method) without visually showing a new instance of Microsoft Project?

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1 Answer

  1. Editorial Team

    Found the solution (but it only works for Office 2010 and above).

    Basically, Globals.ThisAddin.Application.Subprojects[index].SourceProject, will return a reference to the subproject which you can work with like a normal project.

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