Import data and plot

Hi,I'm trying to plot import my data using the import tool ,then I want to plot ,here is what I got the data couldn't appear on my script .

Answer 1

[Mohammad Sami]

Since your filename has a space try put it in double quotes.

a = readtable("spectre libs.txt");

[Walter Roberson]

Or single quotes.

[Imene Yed]

thank you so much @Walter Roberson and @Mohammad Sami