You're most definitely not sounding stupid, I doubt it's an easy task. I'll be trying my best to find a solution before re-uploading a working Mac version asap.
Actually version mac can run but need to use terminal to open
First : extract file then drag to desktop (after make this run you can drag it back somewhere in folder)
Second : Open terminal then type cd Desktop then enter
Third : Copy and paste this
chmod +x TheStorageAccident_MacOS_V1.1.app/Contents/MacOS/'The Storage Accident'
then enter and from now it should work