22:41 "POI allows working on the filesystem without loading the whole file into memory" This is incorrect. Reading an excel file using the standard POI api will load the whole thing in memory (or at least the sheet that you are reading). POI does have a streaming api as well but it is really awkward to use. I recommend using fastexcel-reader.
22:41 "POI allows working on the filesystem without loading the whole file into memory"
This is incorrect. Reading an excel file using the standard POI api will load the whole thing in memory (or at least the sheet that you are reading). POI does have a streaming api as well but it is really awkward to use. I recommend using fastexcel-reader.