On your compose page, look out for the first field that allows you to browse for files on your computer.
Please ensure that the file you are uploading is a properly formatted text file or CSV file.
Click on the browse button beside the field and navigate to the file location on your computer. Select the file and click the ‘Open’ button on the file upload window
File path will be loaded into the compose file field.
You can continue composing your message
Posted in: Messaging, Sending Text Message