I have loaded your data with a simple script as follows:
Month(TimeStamp) as Month,
Year(TimeStamp) as Year,
Date(MonthStart(TimeStamp),'MMM-YYYY') as MonthYear,
FROM [lib://Downloads/Sample Input and Output.xlsx]
(ooxml, embedded labels, header is 1 lines, table is Sheet1);
This gives you some Date dimensions to work with.
Then on the Sheets, create a straight table and add your measures..