Microsoft Teams is a team collaboration application which is part of the Microsoft 365 family of products, offering workspace chat and video conferencing, file storage, and integration of proprietary and third-party applications and services.
Attach file in a post
- Go to the Posts tab in the channel where you want the file.
- Start a new conversation or reply to an existing one
- Select the plus sign at the bottom of the post window

- Select Attach file from the menu:

- Choose location of the file, from the cloud/OneDrive, your Teams or Channels, or from your computer

- Select a file
- Choose Open
- Type any additional message you would like to add
- Select the Post button
Note: The links to files attached to a post will reside in the post. The files will not be added to the Files tab automatically.
Add to the Files tab
Every channel has a Files tab, where most shared files will be stored.
Upload files:
- Select the channel where you would like to store the files
- Go to the Files tab
- Select Upload
- Choose Files, Folders or Templates from the menu to open your file manager

- Select the file you would like to upload to the team
- Click Open
Create your file directly in Teams:
- Select the channel where you would like to store the files
- Go to the Files tab
- Select the New button

- Choose the type of file you want to create – this will open in the online version of the app
- The file will be available in the Teams channel
Move or copy from One Drive:
- Open your OneDrive
- Select the file or folder you would like to move or copy to a team
- Select Move to or Copy to. The commands are found either on the top menu or on the menu opened by selecting the ellipsis next to the document name

- When the dialog box opens some teams and groups will be listed on the left side.
- Choose ‘More places’ to see all of the teams and groups you are a part of

- Select the team to move the file to, to see the channel and file structure of the destination team
- Select the folder where you would like to move or copy the file
- Click Copy here/Move here

Move or copy from another team:
- Open the File tab of the channel where your file is found
- Select the file
- Select the ellipsis either in the top menu or next to the file name to open the menu
- Select Move to/Copy to from the menu
- Select the team from the left column, or select ‘More places’ to see all the teams and groups
- Select the team or group to move or copy the file to, to open the channel and folder structure of the team
- Select the folder where you would like the file
- Select Copy here/Move here