I have several users, including myself, that have an issue opening MS Office 2013 documents. The issue can happen in one of two ways. 1st, often when there is already a Word or Excel document open and you try to open another either by File > Open or going to the folder and double- clicking the file. It seems that Office just hangs on it and never opens the file.
2nd, clicking on a hyperlink in an IE browser. The file doesn't open but the icon for the file (either Word or Excel) shows on the taskbar as if there is an open document.
No errors are given and sometimes if you repeat the process a few times the file will eventually open. All users having the issue are on Windows 7 Pro both 32bit and 64bit.