Excel Software Professionals, Ltd. (ESP) has been in business since May 11, 1981. ESP started as a captive service bureau under the name of Louisiana Data Services where provided service bureau services, custom programming services and specialized in IBM mid- range application software. In 1989, ESP changed its name from Louisiana Data Services to Excel Software Professionals, Ltd and thru today, ESP has enjoyed a healthy growth in its client-base of Texas and Louisiana school districts, who utilize our expertise in managing their financial, HR, and student based information systems.