When
starting PIC Development Studio, the Project Wizard dialog appears.
From the Project Wizard you can set up a new project or open an existing
project.

New
Project
To create a new project, just click on the button label New
at the bottom of the dialog. To learn more how to set up a new project,
read the tutorial Creating a new project
Open
an existing project
In the list in the middle of the opening dialog are all projects saved
in the project folder listed. If you have saved your project elsewhere,
select [more files...] and click on Open.