I started to download Microsoft Excel app from App Store onto my iPad, but after almost an hour it was not yet half way downloaded (it's a huge file and I have slow wifi, so it's understandable). I decided to cancel the download. Now Excel is on the home screen and cannot be removed the usual way. I press and hold on it until it wiggles, then I click the x, and the usual message appears to ask me if I want to remove it, and I say yes, but nothing happens. The grayed-out Excel app icon just stays on my home screen.
How can I remove this app?