I'm aware of it, but it's a ghetto... In the sense that it is largely kept separate from professionally maintained codebases.
For me, I don't like working in Excel, and I want to have better working relationships with designers, customer support people, business folks, etc. I want us to be able to work on the same projects together, which means not Excel because Excel is extremely limited and difficult to work with. Not difficult for a random person to use for some calculation. Difficult for me to get the things I want to get done in Excel when I'm trying to build arbitrary web apps.
For me, I don't like working in Excel, and I want to have better working relationships with designers, customer support people, business folks, etc. I want us to be able to work on the same projects together, which means not Excel because Excel is extremely limited and difficult to work with. Not difficult for a random person to use for some calculation. Difficult for me to get the things I want to get done in Excel when I'm trying to build arbitrary web apps.