I have used Spider Financial's NumXL 1.0 extensively for the last couple of months and I'm really impressed with it. I needed tools that were not available in SAS JMP, and I really like the way information pops up in Excel. I can't say enough about Spider Financial's knowledgeable and dedicated customer support team - they are always willing to spend whatever time it takes to find the solutions. I recommend them without reservation to anyone who needs expert time series analysis help.