Dear Sir/Madam
Today I face a new problem with Office 365. When I try to open an excel file and work with it on my pc I am asked if I want to edit the file. When I choose editing it opens excel and a smaller window which writes initially http://login.microsoftonline.com/which immediately changes to http://gstyl.sharepoint.com/. At the background I get excel and in the small box appear the web site of my account. If I close the small box I have excel empty with no document. I don't know how to send you a photo of the screen otherwise you could fully understand the problem. All these problems started when upgrading my pc to windows 8.