Files that you share in a channel are stored in your team's SharePoint folder. Files that you share in a private or group conversation are stored in your OneDrive for Business folder and are shared with the people in that conversation
To share files with a team, go to the Files tab at the top of a conversation, and click Upload.
You can also attach a file directly to a message and it will appear in your Files tab.
Unfortunately, we don't support file library syncing at this time.
The easiest way to send a file in a direct message or channel is to click the paper clip icon in the compose box.
In a one-on-one or group conversation, you can upload a file to your OneDrive for Business and share it or choose an existing OneDrive file. Everyone in the conversation will automatically be given permission to view, edit, and share the file.
In a channel, you can choose to upload a file from your Microsoft Teams, Recent files, OneDrive for Business, or desktop. The entire team will be able to access the file instantly.
Click the Files button to see all your files, which are sorted into the following categories:
The Recent view shows you every Office 365 document you’ve viewed or edited in recent history.
The Microsoft Teams view shows you all the documents that have been created or edited recently within your favorite channels.
OneDrive contains all your OneDrive for Business files.
In the Downloads view, you'll see a list of all the files you've downloaded to Microsoft Teams.
Files that you share in a channel are stored in your team's SharePoint folder. Files that you share in a private or group conversation are stored in your OneDrive for Business folder and are shared with the people in that conversation.
If you deleted files from a Files or SharePoint tab and you want them back, don’t despair! Just open the channel or tab where the files were, and choose Open in SharePoint. Once the SharePoint site page opens, choose Recycle bin from the left bar, and your deleted files should be right there.
Right now, if you upload a file that’s already in Microsoft Teams, it’s duplicated. But we’re working on adding support for referencing existing files.
You can download any file you see in Microsoft Teams - whether it’s in a channel’s Files tab, sent in a message, or in a OneDrive folder. In most cases, right click on a file to see a menu of options for downloading it, opening it, or getting a link to it.
Clicking the Files button on the left side of Teams lets you see recently accessed files, a list of your files in Teams, OneDrive files you’ve added to Teams, and your Teams download history.
To move or copy a file, open the Files or SharePoint tab for the channel that has the file. Once you select the file, options to Move or Copy it will appear on the top menu bar. You can also right-click on the filename to open the action menu and choose Move or Copy.
Microsoft Teams lets you copy files:
Within the same team
Between OneDrive and a team
From a SharePoint tab to the same document library, a team, or a OneDrive
You can move files:
Within the same team
Within the same OneDrive
Within the same document library of a SharePoint tab
You can share files with others in your one-on-one and group conversations by clicking Upload in the Files tab.
Only team members can see team files. To share files with anyone outside your team, choose Open in SharePoint and then share the files you want from the SharePoint site