Exporting 'Comments' from Google Docs Spreadsheet onto Zoho CRM

Exporting 'Comments' from Google Docs Spreadsheet onto Zoho CRM

We currently have over 1800 rows of records on Google Docs Spreadsheet. We have been using GDocs Spreadsheet a while now to input all of our client details, including their sales notes in the 'Comment' boxes. 

We're looking to move from GDocs Spreadsheet to Zoho CRM and I was wondering how to export all of the records on GDocs Spreadsheet into Zoho CRM WITH the comments in the 'Comment' boxes. These comments should go into their corresponding record/leads' 'Note' section in Zoho CRM. 

Many thanks!