Datafile Alpha Labels - Data File Roll Labels A-Z. Datafile Alpha Labels and Tab Products L8720 Series Labels, Label Size 15/16 H x 1-1/4 W, packed 500 Labels per Roll. Data File Alpha Labels and Tab Products L8720 Series Labels are made from a high quality, white gloss material with clear lamination for protection. The labels are scored so they easily wrap around the edge of your filing product.