Additional team and channel-related features and issues within Microsoft Teams for Education
Hi Dale,
For each team there is a related SharePoint team site collection. All files that under File tab in the team are stored in the related site. In that team, click "...", Open in SharePoint to access the related site, and then perform the following options:
- Click Recycle bin at the left pane. See if there is the file. Let the team owner access the recycle bin of this site, he/she should be able to see Second-stage recycle bin at the bottom of the page, click it to check.
- When you click Open in SharePoint, you should be redirected to the document library of that site, in the left top you should see a search box, enter the file name to see if it can be searched.
Best regards,
Tim