Dude, you need to unzip the package, then find the NaiNai Recipe.exe, open it and everything would go well.
Hi Kizinaa, If you are a Win11 user, just right click the package and you would see the Extract All option. Check this for more infos: https://support.microsoft.com/en-us/windows/zip-and-unzip-files-8d28fa72-f2f9-71...
If you are not, you can download 7-Zip at https://www.7-zip.org/. And the rest of actions needed are basically the same.