Hello there! Thank you for taking the time to leave a review. I'm sorry to hear that you're having trouble downloading Microsoft Excel 2024 on your Mac Air 2017. Just to clarify, this version is specifically for macOS 14 or above. However, we would be happy to exchange it for the latest version, Office 2021, which comes with a lifetime license. Please reach out to our customer service team and we'll assist you with the exchange.