The original dataset may be downloaded from this link as an Excel workbook, ready to use with Lertap 5.
Note: Excel workbooks will often have many worksheets when Lertap options are used. It is possible to see a list of all of them as seen in the screen snapshot below; in this case, the IbreaksMH1 worksheet has been selected and will become the "active" worksheet:
This webpage mentions how to get the list to appear. It's easy.