Create a document library in SharePoint to store files where you and your co-workers can find them easily, work on them together, and access them from any device at any time. SharePoint team sites include a document library by default, however, you can add additional document and other libraries to a site as needed. 

1. Go to the site where you want to create a new document library.
2. On the menu bar, select New, and then select Document library.

       

     3. Enter a name for the new library.

       

     4. Select Create.