Okay so
Client asks for a bunch of data what can be easily calculated with excel. I think to myself, yeah, ill not fuck around adding numbers 1by1, ill just use excel.

Client wants a program, says he likes having a program do stuff. Mind you, this isnt an universal program at all, it just has to work for this specific input file.

Me: packages the original excel file into a jar and makes it unpackage when run.

Client: is happy

Me: ???