The paper presents a computing architecture and related problems of a batch job to create and send mass Excel reports to a lot of users using REXX, SAS Base, HTML, MSO XML and Email system. The paper addresses an application of a SAS parameterized program invoked multiple times from REXX to create Excel reports and send them by Email. It reviews, based on a real business example, a proposed computing architecture, programmable components written in REXX, SAS, HTML(XML), stresses their effectiveness, presents optimization problems and solutions to save CPU time and time of HTML to Excel conversion.
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