Problem about dat "contains invalid header information" when using "load memory"

Hello:

  I encountered a problem others might frequently meet:

  I generated five digits [1 2 3 4 5] from matlab and export it as dat file:

This dat file looks like this in my desktop.

Then I listened to technician's suggestion and use "load memory" in debug perspective to choose this test.dat file in my desktop

and I want to load these five digits into consecutive memory address starting from 0x80000000.

However, I got stuck by two problems:

1-I have heard that I should use "CCS.dat" format rather than generic .dat format generated by matlab.   How could I make sure I am loading in CCS.dat format data?  And should I chick on "Use the file header inform...."

2-When I hit "Next", warning  poped up:

Could anybody give me some hints about :

Why it happens?

How could I validly import generic dat file into my memory via "load memory"?

And how to convert into "CCS.dat" file?

Thanks a lot

Yu