Hi,
Can you please edit the CSV file in "raw" mode, with "notepad" for example.
Pick up a line in the CSV and see how the order_full_price is displayed.
I want to know if the value is wrong formatted or not ; maybe it's an interpretation problem with your spreadsheet software.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.