the invention discloses a multiple layer packaging film , packages made therefrom and a method of opening the packages . the invention provides inseparable seal strength and in some cases hermetic seals , in combination with peelable ply separation opening for access to the contents of the package , while at the same time providing excellent barriers to transmission of oxygen and moisture . certain embodiments provide for improved abuse resistance , excellent graphics , and other improvements . the method of opening the package depends on separating opposing ones of the package sidewalls , forcing the opening tear to be propagated partially through the film to a peelable layer interface , with subsequent ply separation along the interface to effect completion of opening of the package .