Texting to a group of numbers at the same time. - 02/05/2018 17:14 EDT

On days I need a day laborer (construction related like cleanup, demolition work, landscaping, etc...) I will text the people from my spreadsheet list one at a time. This is too time-consuming. I need a solution so I can text a group of these people at the same time and they can text me back if they are available. I require a Windows 10 or an online app so I can cut and past the numbers from my spreadsheet list that I need to text and it will text the whole group of numbers with my message. If possible the app should also have an android app that will notify me of their response so I am not getting text message charges for each response. NOTE: It should not only be an android app because I will not be able to select the number from my spreadsheet on my phone. I use Google Drive, Gmail and Android phone and my primary tools. Once a solution is identified that will work, I require it me tested for ease of use and after that to write me concise simple instructions, a video or a link tutorial that shows me how to do it. If it is a link to someone else's work then you 1st need to try their instruction yourself to test that their instructions are understandable and work. If there are problems or a simpler way then to tell me the better way. Is there any information you need from me for you to complete this task? Keep in mind Main goal= Find out how I can conveniently text a group at the same time from my list and they can respond to my text if they are available or not.