For the sake of argument I'll agree with you. Even then, there's a key difference between the two software stacks: anyone could improve LibreOffice. Could you

For the sake of argument I'll agree with you. Even then, there's a key difference between the two software stacks: anyone could improve LibreOffice. Could you name an issue you have with Calc that makes you feel it is inferior to Excel? (something more specific than look-and-feel, ideally, although I admit that may be a factor in reality)