If you create an Excel interface which uses the STEM add-in, then, in order for someone to use a copy of the model on another computer, they must first load the add-in as described in 6.5.1 Loading the STEM add-in.
We strongly recommend that you work with the workbook in the same folder as the STEM model so that you can leave the model and configuration paths blank in the add-in toolbar definitions sheet. This avoids the need to alter these cells if the workbook/model package is copied to another machine.
If the other machine has a conventional STEM installation, then the STEM Installation path can also be left blank: the add-in will locate the STEM software automatically (according to the STEM model file association in the Windows registry). Otherwise, if you are sending someone a run-time package created with Distributable STEM (see
7. Distributable STEM), then the add-in will locate the run-time software components automatically if they are located in the same folder as the workbook.