Microsoft Excel is certainly one of the most used standard software products of today - if not the most used. The plethora of both user types and application areas is very remarkable: Companies of any size use the application in almost any functional area. Just as striking: The application, designed as spreadsheet program, is very often used for rather untypical purposes. Everybody knows this “Excel Monster Application”, which is designed to deliver an output which the respective company pretty much depends on, but which basically no longer can be handled appropriately. This phenomenon particularly can get observed when it comes to the operational production scheduling within small to mid-size manufacturing companies. Hence, this blog post discusses the possibilities and limitations of an operational production scheduling with Excel.