I think you’ll find that this problem has been fixed in the current release (7.5). I made a few changes to the data file you sent me that will enable you to load your data file into v7.5. The changes were to copy over the Point Values tab and the Fill tab from the template Excel file, input.xls. I also added in the Top of Casing field in the Wells tab. Most likely you will also need to activate the license again for this release. Try it first and see whether that is the case.