Importing Activities into Zoho CRM

Importing Activities into Zoho CRM

How do you import Activities into Zoho CRM and ensure that they are linked to the appropriate Contact records? When I try to import a csv file containing Activity records, and I open the CSV file using Excel, it is modifying the Activity ID numbers. When I view the CSV file in Notepad, the numbers appear correct. I reported this problem one week ago. Please advise on when you will have a fix for importing Activity records.

Thanks!

Brian