While you can export your drawing from the app itself, in order to get all of the associated forms, etc, you will need to go to the ArcSite User Site.
- Within the app, ensure you have uploaded all of the drawings to the ArcSite Cloud account, that you want included in the project download
- Navigate to the ArcSite Cloud site
- Open the Project from list
- In top right corner, click on Download Project link
- Select the objects and formats you want to include
- You will then receive an email with a direct download link of the project