1. Click on Teams
2. Click on Add Collaborator
3. Type the email of the collaborator.
4. Click on the drop-down menu to see the selection of the files.
5. Select the file or folder you wish to share with the collaborator.
6. You can add multiple files and folders or share them all by choosing the option ALL.
7. Click on Add Collaborator.
8. You can always edit it to add files and folders. To do so click on edit.
9. Make the changes by adding or removing files.
10. Click on Update Collaborator to update the changes.
