You should consider and try to quantify risk:
- how much cost is to take classes you consider irrelevant (is it that much?)
- the uncertainty whether you are right that those classes are in fact irrelevant
- the probability of encountering situations in your future life in which you'd benefit from having a degree
Do you mean transition from specific spreadsheets you would already have for that task? Or in a wider sense, e.g. as a company - gradually transition from using spreadsheets to using applications for some of the tasks?