Try and take a look at this post
The Alteryx Package is basically a .zip file, so you could rename Weekly Challenge #156.yxzp to Weekly Challenge #156.zip and then just unpack the files.
The following guide above, you should be able to tweak the Weekly Challenge.yxmd and then be able to open the file in a older version.
Best of luck
Looks like my answer follows pretty much what others have been posting. I only took the time to do the easy part.
I have spent more than a day on this, and still not been able to match the provided output.
I could not figure out what to do with the International Reputation and Batch Chemistry, so I went for the semi-though challenge, and went to build the Attribute Reference from the Rating Coefficients.
Then I went for the calculation
Here I had pretty much from the beginning decided that I would like to use the Dynamic Replace tool, to do the calculation. I saw that in the Tool Mastery, and used in another previous challenge, so I thought it might be useful here
I cannot figure out it the reason to my result does not match the provided is because I have chosen the tools poorly, or simply cannot figure out how to do proper rounding of the numbers.
I also noticed that some of the players names does not match, and in the beginning I thought that it was some kind of “bug” in the transposes tool, so I did it all over again, just to figure out that the provided 2018 Fifa Player,csv file is in ANSI format, and therefore some of the players names are not the same in the source, as in the provided result.
I also spent some time, looking at some of the other provided solutions, just to find out, that I was not alone in this. None of the other provided solutions I have checked is a 100% match to the provided solution, so it should be interesting to see the “official” solution.