Microsoft have announced that the Lists app will be available in Teams by the end of October.
This means you can bring lists from the team SharePoint sites into channels and have conversations and collaborations around list items. With this app, you can work on your favourite lists from within Teams.
After adding the Lists app, you can carry out all functions that you normally would in Microsoft Lists (home) and SharePoint lists, including adding/editing columns, filtering, sorting, formatting, and exporting to Excel.
Lists created using the Lists app and Lists created in SharePoint are identical.
This feature is on by default and will be pre-installed for all Teams users and is available directly in the tab gallery of every team and channel.