If you see the “The file couldn’t open in protected view” error while opening Microsoft Excel, the solutions listed in this post may help you resolve the issue ...

Opening Microsoft Office documents from unknown sources can present a security risk because such files can carry viruses. To protect yourself and your computer from malware and other threats, ...

If you cannot preview Word or Excel files in Explorer, but you can preview other text or image files, then this post will help you fix the problem. If the Word or Excel file preview is not working in ...

Unfortunately, we all still click on Office documents emailed from “trusted” contacts, so the next line of defense is to make sure Protected View—the prompt that warns you a file originated from ...

Microsoft Office 2010 knows there are Word-based macro viruses out there. It's so protective, in fact, it can be a bit annoying when you're trying to open Outlook attachments from co-workers. Tech ...