Apple's iCloud service offers the users online backup and syncing for Apple devices. It is built-in on iPhones, iPads, and Macs, but can also be accessed on Windows.
There are basically two ways to access iCloud files on Windows: via the iCloud Control Panel desktop application and via the iCloud website on icloud.com.
In this article, we also introduce you a third way to access iCloud calendar. With a third-party iCloud Transfer software application, you can easily access iCloud files and selectively download files you need.