Change the default list and library experience
As a global or SharePoint admin in Office 365, you can decide whether to use the new or classic list and library experience by default in your organization. This setting is soon going away. Instead of selecting the classic experience for all sites, we recommend setting it for only the specific sites that need it by using PowerShell. (For info about doing this, see Opting out of the modern list and library experience.)
Note that users can select the default experience for an individual list or library, overriding what you set. For info, see Switch the default experience for lists or document libraries from new or classic.
It's best to use the new experience by default wherever possible because it's faster, simpler, and responsive on mobile devices. It also supports many new capabilities that are not available in classic, including Flow and PowerApps integration, the Filters pane, and column formatting. Many sites that have features or customizations that don’t work in the new experience will automatically switch back to the classic experience. For more information about this behavior, see Differences between the new and classic experiences for lists and libraries. To detect lists that won't work well with the new experience, run the SharePoint Modernization scanner.
Change the default experience for all lists and document libraries
Sign in to https://admin.microsoft.com as a global or SharePoint admin. (If you see a message that you don't have permission to access the page, you don't have Office 365 administrator permissions in your organization.)
In the left pane, under Admin centers, select SharePoint. (You might need to select Show all to see the list of admin centers.)
If the classic SharePoint admin center appears, select Try it now to open the new SharePoint admin center.
In the left pane of the new SharePoint admin center, select Settings.
Select Lists & libraries, and turn Use the new experience to On to use the new experience.
Send feedback about: