Log in to the HTML5 client.
Select the Work workspace, Agile tab.
Select a project in the Project Data Selector.
Click on the BACKLOG button available at the bottom of the Project Information panel to open the Full Backlog full screen view.
For each Backlog Item, select an Iteration in the Assigned Iteration field pick-list available in the spreadsheet.
For each Backlog Item, enter the Story Points value in the Story Points field available in the spreadsheet.
Click on the Edit () button of the Backlog Item for which you want to assign a Team Member.
In the Iteration dialog box, click on the Add Assignee label to open the Users popup.
Select an assignee.
Click on the CLOSE button to close the Iteration dialog box.