Need PHP-Engine to send SMS-text from CSV & XLS file

I need a very simple php engine to be able to receive contacts either from an Excel or CSV file or txt file and then allow me to build a simple text only message to send to my recipients using any of the imported records. The idea is very similar to a MS Word mail merge except that it would be done in webpage. So here is how it would work: ====================================== - I am a plumber & I have an Excel spreadsheet with 55 rows of data (With Name, Address, Cellphone number, Address, AppointmentDate, ProducttoInstall) - I upload the Excel spreadsheet into the system - The system receives the spreadsheet & recognizes the different fields - I get a message builder area where I type a custom message such as: ------------------------------------------------------------------------------------------------------------------------------ (Hello , This is to remind you that I will be coming to your house at,,, to install the . I will be there at exactly on . I look forward to see you:) Kamry. ----------------------------------------------------------------------------------------------------------------------------------- - I would also want to be able to check to select the recipients or select all - I want the messages to go out as SMS text messages and I would like the recipients to see my phone number as the senders phone number so that they will actually think that the message came directly from my phone. + I have some other functions that I would like to add later but right now, this is what I want. If you know MS word mail merge then you know exactly what I am looking for. + Please explain how you intend to solve this problem. + I have a limited budget, overly high & generic bids will be least considered, I just want a simple start-up solution right now, but winning bidder will get to expand the system later & possibly other related work. Past proven experience in building mobile related technology will be considered with higher priority. Thanks for reading.