20 lines (19 with data), 707 Bytes

HR14053 12 500 5000 04-Jun-2020 21:57:08
HR14053.mat 16+24 200/mV 16 0 20 -4499 0 I
HR14053.mat 16+24 200/mV 16 0 130 17220 0 II
HR14053.mat 16+24 200/mV 16 0 110 21717 0 III
HR14053.mat 16+24 200/mV 16 0 -75 -6722 0 aVR
HR14053.mat 16+24 200/mV 16 0 -45 -13304 0 aVL
HR14053.mat 16+24 200/mV 16 0 120 19049 0 aVF
HR14053.mat 16+24 200/mV 16 0 -5 -2720 0 V1
HR14053.mat 16+24 200/mV 16 0 -50 -27148 0 V2
HR14053.mat 16+24 200/mV 16 0 -20 -20233 0 V3
HR14053.mat 16+24 200/mV 16 0 60 -2212 0 V4
HR14053.mat 16+24 200/mV 16 0 105 32559 0 V5
HR14053.mat 16+24 200/mV 16 0 -115 -182 0 V6
#Age: 72
#Sex: Male
#Dx: 111975006,164861001,39732003,426783006,429622005,445118002
#Rx: Unknown
#Hx: Unknown
#Sx: Unknown