For sending unique or personalized message to every contact using data saved in excel file, click "Send unique or personalized SMS to every Contact using Excel" button. Choose any one option among "Import Numbers and their respective messages from Excel File" and "On the basis of Excel file contents, create personalized Dynamic messages" and then "Continue".
Browse the location of excel file containing phone numbers and their respective messages. Select sheet, column containing contact numbers, column containing messages, and click Finish button.
To send messages, click on "Send" button.
Progress bar shows current status of messages sending process.