After you , tap “Only invited people,” tap “Can make changes,” then choose a method—such as Messages or Mail—for sending people a link to the folder or file.
Allow only invitees to view the contents: Tap , then tap “Allow others to invite,” then tap Done.
Choose how you want to send your invitation, then tap Send.
If you already shared a folder or file and its access is set to “Only people you invite,” you can share it with more people.
Go to the Files app , tap Manage Shared Folder or Manage Shared File, then tap Send Link.
Choose a method for sending the link, enter any other requested information, then send or post the invitation.
If you’re the owner of a shared folder or file, you can change its access at any time. However, everyone you shared the link with is affected.
Go to the Files app , then tap Manage Shared Folder or Manage Shared File.
Tap the person’s name, then select an option.
If you’re the owner of a shared folder or file, you can stop sharing it.
Go to the Files app Collaborate on a project in Messages