file is .rar I used Winzip but when I unzipped it said it was only able to extract part of the file because it contains missing or invalid data, please help. Thanks

To ask for help with a specific game, the best place is in that game's comments. If the creator didn't answer there, it's unlikely they'll do so here. And this category is for questions about Itch itself, so we can't help you. Sorry.

P.S. At the very least, if you do this, please link to the game so people don't have to go searching for it. Thanks.