Reading data from xlsx with Apache POI's SXSSFSheet

Question

I want to read data ( cell values ) from a certain xlsx file using apachi poi. The code below creates the SXSSFWorkBook instance successfully and assigns db.xl

Answer 1

You can't. SXSSFWorkBook is write only, it doesn't support reading

For low memory reading of .xlsx files, you should look at the XSSF and SAX EventModel documentation