Data base maximum records

Data base maximum records

Hi,

I created a data base in Zoho and imported all my contacts which is an Excel file of 6,00MB. I saw that maximum is 5MB but, however, i have 17850 records in my PC and, in Zoho, I only have 4355 records. Is this possible?? What can I do to have all my records in Zoho? Thank you very much.