How to add more comments on existing excel file that containing comments using apache poi?

I have one problem in Apache poi for putting commands in excel sheet.

My existing Excel sheet having some more c开发者_Go百科omments abt the cell.Now, i want to open my existing excel file and also put some more comments abt the other cells.While doing so, the old comments are removed.after opening the excel file,it says,"file error:Data may have been lost"...

Please guide me to put more comments on my existing excel sheet....

This is not possible in Apache POI3.6.This is a permanent bug in that version.But i dont know whether it is supported by 7 or not...