Switch to side-by-side view

--- a
+++ b/mit-bih-ecg-compression-test-database-1.0.0/12247_01.hea
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+12247_01 2 250 5120
+12247_01.dat 212 400 12 0 87 -13990 0 ECG
+12247_01.dat 212 400 12 0 154 2722 0 ECG