set terminal gif font 'calibri,12' size 1400,600 enhanced
set output 'splot_spaces_comparison.gif'

unset key

set multiplot layout 1,2

set title 'File with spaces' font 'calibri,20'

splot 'splot_data_with_spaces.txt' with lines

set title 'File without spaces' font 'calibri,20'

splot 'splot_data_without_spaces.txt' with lines

unset multiplot