Files
Under Administration -> Files you can add external file storages, such as Nextcloud or OneDrive/SharePoint and manage settings for attachments to work packages.
External file storages
Under external file storages you can add Nextcloud or OneDrive/SharePoint integration to OpenProject.
Attachments
Under attachments you can manage settings for attachments in work packages. You will also find the virus scanning settings here.
Categories
Under categories you can create and manage documentation categories in OpenProject.