Applies to: Microsoft Teams.
Files that you share in a channel are kept in your team’s SharePoint folder. This is stored in the Files tab by the top of each channel.
Files that you share in a private or group chat are retained in your OneDrive for Business folder and are merely shared with those in that conversation. These will be located in the Files tab at the top of a chat.
Note: The OneDrive files you see in Teams are OneDrive for Business files associated with your Office 365 account—not your personal OneDrive. Teams can’t currently connect to your personal OneDrive.