Hi. I'm still in the process of evaluating Aspose.Cells, but so far I'm pretty impressed. Aspose was the 2nd library I tried, and I wish I'd started there as the 1st one I looked at was easy enough to use, but totally trashed formatting and macros when the file was saved. We needed a way to read info from an Excel spreadsheet, run some tests, then update the spreadsheet with the results. I think we've found it!