Process and summarize shipboard 'DAS' < https://swfsc-publications.fisheries.noaa.gov/publications/TM/SWFSC/NOAA-TM-NMFS-SWFSC-305.PDF> data produced by the Southwest Fisheries Science Center (SWFSC) program 'WinCruz' < https://www.fisheries.noaa.gov/west-coast/science-data/california-current-marine-mammal-assessment-program>. This package standardizes and streamlines basic DAS data processing, and includes a PDF with the DAS data format requirements.