The Archive main tab becomes available when you activate an Archive workspace, and then expand the ARCHIVE item on the left sidebar. At the first sight, a listing is not shown - you need to select what to display (Archive, Archive Pages, Archive Stories, Archive  Images, Archive Videos, Archive Audios):

Archive: display all archive content. See I4 Archive listing and I4 Archive search form.

Archive Pages: display only the archived pages. See I4 Archive Pages listing and I4 Archive Pages search form.

Archive Stories: display only the archived text. See I4 Archive Stories listing and I4 Archive Stories search form

Archive Images: display only the archived images.  See I4 Archive Images listing and I4 Archive Images search form

Archive Videos: display only the archived videos. See I4 Archive Videos listing and I4 Archive Videos search form.

Archive Audios: display only the archived audios. See I4 Archive Audios listing and I4 Archive Audios search form.