Q: How to translate the extension into other language say spanish translation?
A: Regarding translation, There is a default translation file provided in package. Please find default translation file path in our package below:
Medma_MarketPlace-3.1.7/app/locale/en_US/Medma_MarketPlace.csv
Now for spanish translation, we need to copy Medma_MarketPlace.csv file to spanish locale directory i.e. es_ES. So copy Medma_MarketPlace.csv file to that spanish locale directory and change the translations accordingly in that CSV file.
You may also translate the words themselves by changing the CSV