TelgramBot will send bulk message to person who ping to telegram bot and you can send them feed or any update you want in using this bot. For this kindly create a bot using botfather get your bot api update bot api in class file give excel file location and paste the id of user and message like this in each row like that "571322325&text=Test for broadcast message. If getting this kindly acknowledge." you will reply on if bot is ping by the user.