How to import CSV in entity - stringfromfile action?

I'm using the import document widget, but can not find any directions in the documentation or forum whether , for instance , a CSV could be imported in the entity. I have installed community commons and found an action called stringfomfile. Did somebody previously use this, or uses a different way of importing and processing CSV files? I would love to hear some experiences around importing CSV into the domain model stringfromfile "Reads the contents form the provided file document and return it as string Note that this might give strange results when using with binary files. In that case, use the Base64 functions."
1 answers

Save it as excel and use ExcelImporter.