Axolot Data

Hi i'm using xlsreadwrite 4 when i open a *.xls document with open password, it is work well. and i can get the sheets count. however, if i want to open a 2007 *.xlsx document, i get a exception"Project project1.exe raised exception chlass EaccessViolation with message "Access violation at...

i am using delphi7
i want to open and read a protected xls document, i can't do it,

how can i check the excel document status: workbooks protected and worksheet protected?
I can't find any demo code.

and how to use the OnPassword event in delphi 7?
thanks very much.