Hello, at work I use various services to store documents offline. I once used the rclone windows program to root with such cloud services. It is a command line application for managing files in cloud storage. Now it is supported by more than 40 cloud storages and it is quite convenient. However, now I have quite a lot of alternatives that work no worse, you can learn about these programs in this article https://rigorousthemes.com/blog/best-rclone-alternatives/ There is a brief description of the functionality of each of them. I think it will be useful for you to learn how they work.