One of the benefits of Revit Building Information Modeling software is that you can extract data from Revit files and use it to create a spreadsheet in Microsoft Excel, which can simplify the creation ...

We keep getting e-mail attachments in winmail.dat files and can’t open them. What’s going on? Is there a utility that can extract the attachments from these? When Outlook or Outlook Express users send ...

.dat can mean many things. data of any type quite often ends up with these extensions. How about using the app that created them? You can also try viewing them in notepad.