3 ms·

actually apache poi is extremely slow while reading/writing large excel files. so there might be the need for some libraries to process them fast.

• jontro 9y ago
  The streaming versions of poi (SXSSF) should be really fast if you're working with large documents.
  • merb 9y ago
    only if you know the column size ahead of time. and it's still slower than other streaming solutions and at some point it buffers to disk.