These 1603 error messages can appear during program installation, while a Oracle Corporation-related software program (eg.
Therefore, you should check the process on your PC to see if it is a threat.
These troubleshooting steps get progressively more difficult and time consuming, so we strongly recommend attempting them in ascending order to avoid unnecessary time and effort.
Manually editing the Windows registry to remove invalid Error 1603 keys is not recommended unless you are PC service professional.
right now i've to first open a file then read cells then creat another workbook, copy data from first file to that workbook then write 2nd workbook into the first one.... I don't think so) If POI is not sufficient for any kind of reasons, you may have to utilize Excel by using COM Automation for such a task.
Read this SO post for more information how to do this in Java.