[racket] Excel type data input?

At Wed, 11 May 2011 14:49:49 +0200 (CEST), Ivanyi Peter wrote:
> Is it possible now to create excel type data sheet input with GUI in racket?

There's still no such widget immediately available in `racket/gui'.
I've always thought a `table%' class would fit nicely in the
`editor<%>' hierarchy alongside `text%' and `pasteboard%', but I've
never found the time to implement it myself.

We now have multi-column `list-box%', but a `list-box%' doesn't let a
user edit the content of a cell.