It appears that they might be labeled "Hidden" in the properties of that file. Right Click on Properties and Uncheckmark Hidden<span />
The answer is Sensitivity
Tahir can restrict actions a recipient can take on the messages he sends. It is recommended that you use IRM (Information Rights Management) if available. Choosing the private option will restrict the recipient from taking actions such as forwarding a confidential message to another person. When Tahir selects the private option, the recipient of the message will see a “please treat this as private” in the information bar.
It is a japanese video game publisher known for publishing space invaders
<span>Video Editor & Movie Maker App</span>