Any way to export/import ALL text for trasnlating purposes?

Hello and thanks for passing by, any help in this matter will be appreciated! I want to create a multi language site, but for that I need duplicate my original site. Thats no problem, but what I'm asking is, if there is a way to export ALL the text from my site, edit it to translate it, and then import it back to the site. That way would be much easier to translate the whole site. Thanks in advance!