Template
You can use this file as template and make small changes when required.
# @title: Gnuplot Template
# @author: Aravind Reddy V
# @hints:
# _{Subscript}, ^{Superscript}
# 1:(2*$2)
set terminal png truecolor # Set output type to png
set grid # Turn on grid
unset log # Remove any previous log scaling
unset label # Remove any previous labels
set autoscale # Scale axes automatically
set xtic auto # set xtics automatically
set ytic auto # set ytics automatically
set output 'output.png' # Set output file
set title 'Plot title' # Set plot title
# set datafile separator "," # Uncomment when using CSV files
# set xtic add(1.1, 2.2) # Add xtics at points
# set ytic add(1.1, 2.2) # Add ytics at points
# set xr[0:10]
# set yr[0:10]
set xlabel "Time (ms)" # Set X axis label
set ylabel "Voltage (v)" # Set Y axis label
plot '1.dat' using 1:2 with lines title 'Channel 1', \
'1.dat' using 1:3 with lines title 'Channel 2'