Hello where is the link to upload importing…

Hello, where is the link to upload (importing external files chapter in doc is not clear !) in one shot a fr_FR.po file for bbPressbbPress Free, open source software built on top of WordPress for easily creating forums on sites. https://bbpress.org. 2.1.2. More than 800 lines are ready and the line by line form is not pretty !
bbPress tracs tell me to post here the question