Within Teamwork Projects, you can integrate your site with OneDrive, and then add the integration to individual projects.
Your files in your OneDrive account will then be available to link directly into the Files area of the project, or to attach them to tasks or messages in the project, like you would with any files you have uploaded directly.
First, you will need to authorise Teamwork Projects to connect to your OneDrive account. To do this, click your profile icon in the top right of your site, and select Settings from the dropdown menu.
In the settings area, go to the Integrations tab.
In the integrations area, you will see separate options for OneDrive Personal and OneDrive for Business.
In the OneDrive section relevant for the Microsoft plan that you have, click the button to connect your account.
Once you have completed authorisation, you will see another button to choose a top level folder.
This allows you to control which files in your OneDrive account are accessible from Teamwork Projects.
When you connect each project to your OneDrive, you will be able to choose this folder for the specific project, or set the project folder as any of the ones within this root folder - so it is a good idea to set up a folder for this purpose.
Click Select Folder to choose from the list of folders in your OneDrive.
Note: OneDrive Personal is available on the Pro plan and above. OneDrive for Business is available on the Premium plan and above.
For more information, see: Enabling OneDrive integration on your projects