How to read paged rows from an excel or ods file?

Question

We are using java and ODF Toolkit for reading rows from ods and excel files.

The problem is that , even if you want to read only 1 row ,the whole document is loaded and the memory usage for a 50.000 rows of ods file is around 350 MBs .

So im searching for a way to read rows by paging . Any chance

Edit1 : Please dont sugges POI , works just like ODF Toolkit.

Edit2 : I accepted an answer but it only works with Excel files , and there's no answer for ODS files.

Answer 1

An alternative approach may be to load rows using JDBC.

There are various JDBC Excel drivers around including this:

https://code.google.com/p/sqlsheet/

See also:

Connecting to excel sheet using jdbc without specifying DSN to Excel sheet

Answer 2

Converting .ods to .xls /.xlsx and using the more established poi api might be helpful.It allows to read specific rows/cells and you can use the same to prevent overshooting your memory limits.