A sme to csv conversion is in most cases related to export of sms messages (or history) stored in Samsung backup files (.sme) to Comma Separated Value format (.csv).
All information points to the fact that this is doable in Samsung Kies, unfortunately not every version of the software has this option. In case your version does not, try to install and use some previous version of Kies.
You can probably also find some 3rd party apps on Android Market that could do the same.
Updated: March 14, 2017