Are they? Still seems way more convenient to just connect Claude to whatever people are already running.
Nobody is replacing excel anywhere.
My experience is that a lot of former Excel use cases have been completely subsumed by Claude/LLMs. Excel files may risk becoming just an interchange format.
This isn’t true. Today we needed to build a model for our startup to forecast headcount. Usually I’d use excel. Instead Claude built an app for me. More powerful features in a fraction of the time.