F3 / Ctrl+Q: why open '*.dat' files as multimedia?

[lezerogan2]

When I use view-F3 or Quick-view-Ctrl-Q on 'dat' extension file, the lister chooses to show the file in option 4 multimedia.
All my 'dat' files are not multimedia files and I like to see them in options 1, 2 or 3 (text, binary, hex).
Is there a way to define in wincmd.ini that 'dat' extension is not multimedia?
Thanks.

[MVV]

Perhaps some lister plugin detects it as multimedia. You should check detection strings for all your lister plugins.

[lezerogan2]

I found the plugin - mmedia
Usually I used to see the plugin name at the window's header. but this time it did not. so I assumed it was the native lister.
It is ok now. Thanks.

[solid]

.dat is the extension of the video chunks in the VideoCD file format.
Container for the mpg format in essence.
That's why it is recognized as multimedia file.
You can remove this extension from the MM detection string. There is very small probability to stumble upon VideoCD nowdays.