Managing particular client data

Managing particular client data

Hi

We host about 100 web sites.
Some of the clients pay for their hosting via debit order.
To facilitate this, we prepare a CSV file containing the client's domain, company name, banking details and amount due.

We are starting to use ZOHO Projects, CRM, Books and Invoices.

Ideally I would like to store the information in one of these, and export the data each month.
I don't mind if I have to filter the CSV and remove irrelevant data.

Can anyone suggest how I store this data and export the csv?

Thanks
Brendon