Use one of the following to create a project in Phoenix:
Main menu: File > New Project.
Main toolbar: 
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Right-click menu for an object: New > Project.
Use one of the following to open a saved project in Phoenix:
Main menu: File > Load Project. (Or, if the project is one of the five most recently opened projects, select it from the bottom of the File menu.)
Main toolbar: 
.
Right-click menu for an object: New > Project.
Outside of Phoenix: Double-click the project file (.phxproj).
By default, project files are saved in Documents\Certara\Phoenix Projects.
Note: It is not recommended to open two conflicting projects since re-serialization occasionally causes project corruption.