Chemistry homework help. Decision modeling with spreadsheets is regarded as clearly the most popular end-user modeling tool. Explain vividly why this is so, i.e. why a spreadsheet is so conducive to the development of Decision Support Systems (DSS). In your discussion, please include what a spreadsheet is, what a spreadsheet add-in means and how can a spreadsheet add-ins help in DSS creation and use? Your research paper should be at least 3 pages (800 words), double-spaced, have at least 4 APA references, and typed in an easy-to-read font in MS Word (other word processors are fine to use but save it in MS Word format). Your cover page should contain the following: Title, Students name, Universitys name, Course name, Course number, Professors name, and Date