Saving a project file to your computer is similar to saving a file in any other program.

 Click File > Save.

Saves the current file, in the current format.

You can use this option only if the file is associated with a location on Google Drive, Dropbox, Box or OneDrive.

Use "Save As" instead.


Learn more:
Save As
Applies to version 2015 and higher.
Project Plan 365 for:
Win PC/ServerMac
Project Viewer for: