The only clarification is the increments of the snapshots required (i.e., do you want them every second, minute, 10 minutes, etc.). Select me to build this project for you because I am coming off of a project for an employer that had me heavily interface with macros and VBA in excel. I am very familiar with the program and I may also be able to provide you with a form so that you can select the time and not have to scroll through the spreadsheet.