Exporting Data

Exporting Data

Hi,
I am on the free Zoho plan and have two different Zoho Accounts. The first Zoho account is old and set up by a colleague. We opened a new one because all the fields had been altered so it was easier to open a new one. The problem is, I have a lot of retailer lists on the old account that I want to transfer to the new one; e.g. contact names and contact details as well as the notes on each account.
I have tried to export the data but it only gives me part of the detail of each account. 
How do I go about exporting ALL of the information so I can upload it to the new Zoho account???
Thanks in advance!!