PA0O ham radio

In the Russian Radio DX RTTY contest some ham's are exchanging reports including  the operator name  of the station worked. I wanted to do this too. Therefore a call history file must be present in the N1MM logger directory In the contest the associated files. The  call history file can be selected. But this is a special format text file. I could not find a recent file for  use with the Russian radio RTTY f.i. on the internet. N1MM menu option to download the latest check partial file.  master.dta or other xxxx.dta What happens further with this file I have not  figured out yet... possible it is enough to place it in the program directory of N1MM ? This type of file can not be selected in the associated file tap. But that is not the same as the call history file   text format That one can be imported if you have one... I don't   so I could not   set the welcome/ hello om  report here needs more study? the N1MM document is very good  I must overlook something I