First, please don’t post new questions in an existing topic (I’ve created a new topic for your post), and don’t post the same question twice.
To convert N1 format into netcdf, you can simply call harpconvert on the file. This will convert the data into the ‘HARP’ format, which is netcdf by default. This will not include all variables from the original product, but will likely contain most of the variables that you will need.