1. Make sure the file is saved to OneDrive (Desktop, Documents, or Pictures)
2. Click on the Teams icon on the left hand side of Microsoft Teams, and then select the Team you would like to upload the file to:
3. Confirm that you are in the General > Posts section of the Team, and then click on "New conversation" at the bottom of the window:
4. Drag and drop the file you would like to upload into the text box that appears after clicking on "New conversation"
5. Press Enter on your keyboard, or the arrow icon below the text box to submit the file:
6. Click on the three horizontal dots on the uploaded file and then select "Make this a tab" to create a new tab in that Team:
7. The file is now accessible from the Posts tab, Files tab, and the new tab that you created