If excel is keeping you on Linux, you’re doing it wrong. The problem here is undoubtedly ignorance and nothing else.
If it’s another program, wine made immense progresses these last years. You want to check about it.
Now, if you’re saying Linux is not ready out of the box, that’s true, but neither is Windows. Not if you have any important need. Windows is good for a customer, not for a company.
BTW Linux changed in the last ten years. It’s not the neckbeard system it used to be.