Ok guys my dad is getting extremely frustrated with his workstation. His specs are a dell precission 670 workstation with two intel Xeon 3ghz procs, irwindale architechture, and he has 6gb of ram but only 4 are accesible and windows XP 32 bit. He runs against the 2gb excel 2007 barrier when running his spreadsheets, and his operating only system only allows him to use 4gb of ram. Oh and the computer recognizes the procS as 4 individual 1.5ghz so when it runs at max it will only run at 25% and it takes 30 min to load and run some of his spreadsheets. My question is, will upgrading to 64 bit software help? and if so which should he get? Otherwise what else is there to do?