Hi,
As Nicolas said, you just have to replace the comma by a dot with some code.
All the exports are working fine, there is no price problems, so if it's adding a 0 at the end of the price it's probably due to a wrong modification.
Actually, thanks to the mass actions present in HikaShop you can export the desired data. Not formatting the prices as wanted, but it can be possible by creating a plugin based on the current export feature. By this way you can format the csv file as wanted.
I have added your request in the todo list, but if you need it shortly, you can ask for a quote via our contact form, or post a request on the commercial jobs section of this forum.