In some cases Microsoft Office opens files in Protected View.
This has nothing to do with RushFiles and happens because Office in some cases detects the file to be unsafe.
Mostly this happens with old versions of office files that have been downloaded from the Internet
Most common files opened in protected view are:
Word 97-2003 files (.doc, .dot)
Excel 97-2003 files (.xls, .xla, .xlt, .xlm, .xlb, .xlt)
PowerPoint 97-2003 files (.ppt, .pot., pps, .ppa)
For more details and how to fix this please look at Microsoft office support page on this URL: