NOVELTY - An engineered enzyme composition (C1) comprises a polypeptide (p1) having xylanase activity; a polypeptide (p2) having beta -xylosidase activity selected from Group 1 or 2 beta -xylosidase; a polypeptide (p3) having L- alpha -arabinofuranosidase activity; and a polypeptide (p4) having beta -glucosidase activity or a whole cellulase enriched with the polypeptide having beta -glucosidase activity, where the composition is capable of hydrolyzing a lignocellulosic biomass material.    USE - As engineered enzyme composition; for hydrolyzing or digesting lignocellulosic biomass material; for producing ethanol; and in an industrial or commercial setting following a merchant enzyme supply model strategy or a on-site biorefinery model strategy (claimed).    ADVANTAGE - The engineered enzyme composition comprising certain particular blends or weight ratios of polypeptides having these hemicelluloytic activities and/or celluloytic activities, which allow for efficient saccharification of cellulosic and hemicellulosic materials. The enzyme composition reduces the cost of enzymes in a number of industrial processes, including e.g. in biofuel production.    DETAILED DESCRIPTION - An engineered enzyme composition (C1) either comprises a polypeptide (p1) having xylanase activity; a polypeptide (p2) having beta -xylosidase activity selected from Group 1 or 2 beta -xylosidase; a polypeptide (p3) having L- alpha -arabinofuranosidase activity; and a polypeptide (p4) having beta -glucosidase activity or a whole cellulase enriched with the polypeptide having beta -glucosidase activity; or the polypeptides (p2), (p3), and (p4); or the polypeptides (p1), (p2), and (p4), where the composition is capable of hydrolyzing a lignocellulosic biomass material. INDEPENDENT CLAIMS are included for the following:    (1) an engineered enzyme composition (C2) either comprises the polypeptides (p1), (p2), (p3) and a polypeptide (p5) having GH61/endoglucanase activity or a whole cellulase enriched with the polypeptide having GH61/endoglucanase activity; or the polypeptides (p2), (p3), and (p5); or the polypeptides (p1), (p2), and (p5);    (2) hydrolyzing or digesting (M1) lignocellulosic biomass material comprising hemicelluloses and/or cellulose, involving contacting the enzyme compositions (C1) or (C2) with the lignocellulosic biomass mixture; and    (3) producing (M2) ethanol involving contacting a lignocellulosic biomass material with the enzyme composition (C1) or (C2) to produce fermentable sugar, followed by fementing the fermentable sugar into ethanol using an ethanologen microorganism.