Sharing files properly in Teams instead of email attachments

Files shared in a Teams channel or chat are stored in SharePoint or OneDrive behind the scenes, meaning everyone works on the same live version instead of five different attachments called "final_v3.docx". Use the Files tab in a channel as the single source of truth rather than re-uploading updated copies over email.

Coach's tip: if you're still emailing attachments to colleagues who are in the same Team, you're creating exactly the version-control mess Teams was built to avoid.