This Excel Gantt Chart Maker has a nice feature that allows you to share your Excel file by email. Click on « Tools » then « Share by email ».
A message will prompt asking you if you would like to pre-fill the recipients field automatically from the members list or not. This is meant to avoid you sending the schedule to all the members while your intention was to send it to few people.
A draft email will be prepared using your default software program. It will not be sent until you complete the remaining fields and click on send.