A family of Microsoft relational database management systems designed for ease of use.
Yes I did, but I also told you to create a query that filters for the records you want and then use that as the source for the crosstab.
This is a concept I call "interim" queries. Sometimes you need to build several queries to get to the final result set that you need. I also told you, that you need to work through this progression of queries to determine where the problems lie. If you determine that the Crosstab is producing duplicate rows, then you need to do something to filter the rows before you use a crosstab.
So there is no reversal here. There is simply analyzing the queries and making adjustments to get the result set you want.