Step 4: Work with your team
Create and work on files as a team, no matter where you are.
With Microsoft Teams, your work team has a central place to save, communicate, and collaborate.
See what Microsoft Teams can do for you and your teams.
Go to office.com and select Teams.
Go to https://login.partner.microsoftonline.cn and select Teams.
Go to https://portal.office.de and select Teams.
Sign in with your work or school account.
Note: To use Microsoft Teams, make sure  you have an Office 365 account with a Business or Enterprise Office 365 license plan, and  your IT Admin turned on Microsoft Teams in the Office 365 Admin center. For more info, see How do I get access to Microsoft Teams.
Select a channel, and then select Files.
Select Upload, select a file, and then Open.
Post a document like one of these: 5 new ways to work with Word, Outlook and PowerPoint.
Or, select Conversations, use @ to mention someone, and attach a file.