The best thing about json-to csv is that it converts jsons into various different formats with ease without any configuration or coding required from end user's point of view as well! It has excellent performance when compared against other software which require some additional configurations/code changes for converting data in desired format like xlsx etc., I think its not yet available at free price limitation option unlike most others but they can easily enable such type pricing model so their customer base will increase automatically :) Its totally worth trying once if you are dealing mostly within java related applications where we have used Json2csv tool before!! You don't need much knowledge regarding conversion process while using them because there should be nothing more than just copy paste method involved here. One simple way out by doing all work manually would probably take days whereas one could get done only few hours even though time taken might differ per system requirements!!