My folder "ASupermanFlightExperience\Windows\CitySample\Content" contain 2 folders. A folder "Splash" with only one image file inside for a size of 2 880 138 bytes. A folder "Paks" with 5 files for a size of 19 000 321 230 bytes. Are you sure you have all the files and that they are of the correct size ?
[EDIT] If you installed the 7-Zip program, you should right-click the ASupermanFlightExperience.zip file, select "CRC SHA" and then "SHA-256". The result of the SHA-256 should be exactly "E22C3E4C8637C56ED7AA649B5A7522C7EC233526703E6FCD5962503AAF6343CE" without the quotes. If if is a different value, your download is corrupted/incomplete and you need to download it again.
You did your SHA-256 on the extracted folder, the one i provided is for the ASupermanFlightExperience.zip file downloaded directly from the link in the text file. The values would not be the same even if it was not corrupted.
However, I see in your screenshot that the size of your folder is too small. So downloading it again will probably fix the problem. Make sure you compare the SHA-256 after you finish redownloading the zip file by doing it on the zip file itself. It should be identical to mine.
