[Dx4win] LOTW - How to Update New QSOs

[Pawel SP7PS]

Hello,
Just play with LOTW. Upload file went smooth, only one error (in callsign I
put question mark, e.g. "S51XXX?").
Found 167 contacts confirmed, but wish there is no statistic (how many
entities worked/confirmed), DXCC Award, etc.

My question is: if I made new contacts should I send the whole file
(included old uploaded contacts) or send only new QSOs information?

73's de Pawel, SP7PS (SN7N in contests)
http://sp7ps.pl