When a user attempts to open an Office file (Word, Excel, PowerPoint, etc) in EleUM, either a login window appears or nothing seems to happen at all.
When you see the login window you can enter your credentials or click on cancel. The document will open.
When you don’t see the window it has appeared behind you browser in this case minmalize your browser to see the login window and enter your credentials or click on cancel.
This issue only occurs in Internet Explorer and is to be solved in a future release.