As your team works together you'll undoubtedly have files that you'll want to share and collaborate on. Microsoft Teams makes it easy to share files within channels. If the files are Word, Excel. For Word, Excel, and PowerPoint, they can see each others changes in almost real time Let's take a look at how you can use Microsoft Teams to work better together.
Your files library
Within each Microsoft Team there are one, or more, channels where more focused discussions take place. Each channel has its own file folder where you can share files with that channel. To access that folder go to the channel and click Files on the tabs above the conversation window.
Upload existing files
There are two primary ways to upload existing files into your library. Both methods start by going to the files folder for your channel and both methods, by default, upload copies of your files to the channel file folder.
Drag and drop - Using your mouse, drag the file from where it's currently located and drop it on the Teams window among the files. You can also easily upload multiple files using this technique
Upload - If you click the Upload button, a File Explorer dialog box will open, allowing you to select the file (or files) you'd like to upload. Select those files and click Open.