All data including Japanese characters can be exported perfectly to Excel. Thank you for your excellent update !

Thank you for paying an attention on this. I sent you a exp. file from other application and also iCompta's one containing the same data for reference.

I'm opening the transaction data w/ Excel for Mac2011 after exporting in CSV format, but all Japanese characters are garbled even every encoding in dialogue is tried. When I checked the CSV file exported from another finance application for iPhone, it went well and characters were shown properly ...