Question: how to import contacts from excel into salesforce?
Answer: Go to the 'contacts tab' and then 'tools'.
Then select the 'Import my Accounts and Contacts' option.
On the Import Wizard click 'start'.
Select 'other data source' then click next.
Locate your file and then click next again. At this point you'll be able to customise data fields. ... 
Click 'Import Now'.