I am a retired oceanographer used to draw personal bathymetric charts where I deployed scientific devices and now willing to plot detailed charts of some fishing places. Just for convenience, I would like to have, in a single file, all the data I have collected in the past with an Elite 5HDI, hence included in different files over years, for this or that fishing place. Ideally, I would like to convert all the sl2 files I have and select, with Excel, the lat-lon places I want to plot. Is this possible and how? With my kind regards.
