Follow the given steps to login
Step 1:Once you login, Click on Settings tab and Data Management link
Step 2: In data management link, you will find Imports section.
Step 3 : After click on Imports, page will open with all import history, Now click on Import Data link
Step 4 : select tha data sheet to import
Step 5: Find the entity in which you want to import data
Step 6: Map all the fields of excel sheet and Entity
Step 7 : Click next and finish the process
Step 8 : After finish, you can see the status of import.