Hi,
It is currently not possible in HikaMarket 1.3.1 to export orders in the front-end.
But I note it in my TODO list in order to implement it as soon as possible.
The release of the next HikaMarket build is soon, I can't guarantee but we will do our best to include this feature into (or if not possible, it will be in the next one).
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.