Version 2.07 is released. Get it here: https://sourceforge.net/projects/csv2odf/files/csv2odf-2.07/
This version fixed a bug for a memory error with xlsx and large csv files.
Please test and if find any problem, you can reply here or enter a bug report.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Version 2.07 is released. Get it here: https://sourceforge.net/projects/csv2odf/files/csv2odf-2.07/
This version fixed a bug for a memory error with xlsx and large csv files.
Please test and if find any problem, you can reply here or enter a bug report.