My spreadsheet data is stored in the range A1:J20. Therefore, I do not
care if a user plays with or modifies cells that are outside of this range.

Can I somehow program Excel to prevent the "Do you want to save
changes?" dialog box if a user changes cells that are out of range and
then s/he closes the workbook??

I basically only want the "save changes" dialog box to be prompted
when cells within the A1:J20 range are modified.

Thank you!