I am working on a Six Sigma DMAIC project and am having a difficult time with the (Control XmR Chart) amp; (Control Pp amp; Ppk) sections of the...

I am working on a Six Sigma DMAIC project and am having a difficult time with the (Control XmR Chart) & (Control Pp & Ppk) sections of the Excel spreadsheet.  I have attached a copy of the Excel spreadsheet. I just need help on these two sections. I need to make sure the responses are accurate/complete on the XMR and on the Pp Ppk the same, is the Ppk is incorrect and I need to make sure the responses are correct.