Problems with importing data

Problems with importing data

Hello.
I've tried to import contact data from the .xls and .csv file, it wouldn’t do it.
I managed to map all fields. It says after the import operation
  • No. of Records added: 0
  • No. of Records updated: 0
  • No. of Records ignored: 276
    (Reason: Due to empty values for any of the mandatory fields)
I’ve attached the shortened version of the document that I was using. Could you let me know what I was doing wrong?

 

Many thanks,

Lena