DAT files received as email attachments can be opened using specialized apps or services such as Winmail.dat Explorer or the Winmail.dat Viewer website.

Index.dat file reader or viewer You can use freeware Index.dat Suite or Index.dat Scanner to view the index.dat file in Windows 7 or earlier. But you will not be able to use these freeware on ...

In case you are wondering what this is all about a quick recap might be in order. All versions of Windows (since Windows 95) have a number of hidden and protected files called index.dat, one in ...