It's true. I have a 3000-row spreadsheet I need to work on for my biomedical engineering class. It's an output from Abaqus. What's becoming painfully obvious to me is that there is absolutely no decent spreadsheet software available on Mac!! I have a MBA C2D 1.6 with 80gb hard drive. -Numbers is horribly slow. It's unusable, even on brand new Macs. -NeoOffice was unable to open my file because it was too big... which is pathetic considering it is only a few hundred kb. CPU usage rose to 170% and the fans were cranking. So much for open source. -Office 2008 is also pathetically slow. -In fact, even Office 2007 is ridiculously slow on PC... way too slow for any hardcore data-crunching. What am I left with? I have an iMac G3 600mhz with OS9, and I've resorted to using AppleWorks to work on my spreadsheet WTF is wrong with computing these days?