Avery 5160 Return Address Labels - LabelMakr Avery 5160 Return Address Labels 1 inch by 2⅝ inches, 30 labels per sheet Print Options All the same - a whole page with the same thing on each label. CSV mail merge - make labels from data in a comma-separated value (CSV) file. Text mail merge - make labels from data in a plain text (TXT) file.