Open OneDrive
in Teams.
Select My files
.
Hover over the file you want to delete and select More actions
> Delete
.

Your file will be moved to Recycle bin.
Open OneDrive
in Teams.
Select Recycle bin
.
Find the file you want to recover.
Right-click the file and select Restore.
The file will be restored to the last location it was stored.
Go to the Files tab in a channel.
Find the file you want to delete.
Hover over the file and select More options
> Delete.
To
delete several files at once, hover over each file and select the
circled check mark in the left column. Then hover over one of the files
and select More options
> Delete.
You can remove a file from a chat message you've already sent by editing the message
Open a channel and select the Files tab.
Select Open in SharePoint at the top of the page.
In SharePoint, select Toggle navigation pane
> Recycle bin.
Hover over the file(s) you want to recover and select the circled check mark in the left column of the file's row.
Select Restore .
The file will be restored to the last location it was stored.