There are loads of file types swimming around our computers at any given time — most of which exist to supplement the programs we use or play (or allow them to function in the first place).

What is the deal with those winmail. dat files? I get them in my email all the time, and nothing seems to be able to open them. When you purchase through links on our site, we may earn an ...

The winmail.dat file contains the Rich Text Format information for the message, but usually will not open normally. (These attachments are sometimes called T.N.E.F. files, short for Transport ...