Let me just give you a quick hint at what's getting supported in
xlsgen,
I am entering beta phase and hope to ship this product feature pretty soon, like this week or so.
Yep, the first publicly known third-party implementation with native Excel 2007 file format generation.
More than just file formats, start thinking about scenarios where you can effectively use a 1 million row matrix (instead of 65536 rows), for calculation or database import purposes...
And unlimited colors...
And new BI scenarios...
And...
And...
I can't wait to ship this thing.
Best part? It will be a xlsgen 2.1 update : so basically free for xlsgen 2.1 customers...