Scuba diving cylinder comparison spreadsheet

Editable spreadsheet with comparison of various scuba tanks: pressures, volumes, time at given depth, weight, buoyancy, sizes, prices, costs of filling. Visual of liters provided by various tanks. Comparison of strenghts and weaknesses of materials. Initially created to select back and deco gas tanks for sidemount diving. Version 4: costs of filling added, comparison of benefits and weaknesses added, small corrections.