set term png size 1200,900
set output 'plot.png'
set label "A1" at 560, 0.9317 point linecolor rgb "#ff0000" textcolor rgb "#ff0000" offset character 0,.2
plot 'Book1.txt' using 1:2 with lines notitle linetype rgb "#ff0000"\
#,'Book1.txt' using 1:3 with lines notitle linetype rgbcolor "#000000"\
#,'Book1.txt' using 1:4 with lines notitle linetype rgbcolor "#000000"\
#,'Book1.txt' using 1:5 with lines notitle linetype rgbcolor "#000000"\
#,'Book1.txt' using 1:6 with lines notitle linetype rgbcolor "#000000"\
#,'Book1.txt' using 1:7 with lines notitle linetype rgbcolor "#000000"\
#,'Book1.txt' using 1:8 with lines notitle linetype rgbcolor "#000000"\
#,'Book1.txt' using 1:9 with lines notitle linetype rgbcolor "#000000"\