how do I file share/transfer d0cs from ipad to asus? help!

There are various ways to share files back and forth from an iOS device to a computer.

iCloud Drive

https://www.apple.com/support/icloud/icloud-drive/

iOS File Sharing with iTunes

About File Sharing on iPhone, iPad, and iPod touch - Apple Support

DropBox

https://www.dropbox.com/ipad

Depending on the situation, email can work as well.

I also have OneDrive which has an iOS app and is linked to my microsoft account...needed to activate a windows computer. Works just fine. So another options