Hi,
I don't think your question is an HikaMarket question.
So i would move your request in a more appropriate section.
HikaShop or HikaMarket does not support excel spread sheet (xls) but CSV files.
If your file is too big, you may import it in several step by making several CSV files.
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.