Restore Attachements Zoho CRM after Backup

Restore Attachements Zoho CRM after Backup

 After i request a Backup of all data in Zoho CRM i recieve 2 folders


a) the tables in csv format data.zip

b) a folder full of attachments attachments.zip


How do i restore the files in attachments.zip as these files have no extension ??

see tha attched txt file foe an example on how i get attachments.zip

Thanks...