We need an Excel Plugin for Microsoft Office (should support atleast Office 2016, Office 365) which can read sms-content, phone-number from excel-columns and send sms using Our Sms Api, Plugin should have a settings dialog which can accept details like Api-url, Api-user-name, Api-password, sender-name, group-name etc.
The Plugin should support following Apis (attached image explain more)
1) Get Balance
2) Send Sms
3) Add Group
4) Send Sms to Group