I've spent some time experimenting with the file. Thanks again for sharing it.
Excel spreadsheet to be imported into JMP
Result from copy/paste
This one will be particularly difficult for us to do anything with as what Excel puts on the clipboard, that we can consume, has the returns and there's no way to tell what's a return within the header (or other cell) and what's a return for the end of a row. I'll pass it along to our developers to look at though.
However, the JMP Add-in for Microsoft Excel does a good job with this data table.
JMP Add-in for Microsoft Excel
Or opening the spreadsheet directly in JMP, with or without the Excel Import Wizard, seemed to do a good job.
Excel Wizard
Excel Import Wizard
Both methods (Add-in or import) resulted in this data table