Simple graph example with tikz/pgfplot
\documentclass[tikz,border=10pt]{standalone}
\usepackage{tikz}
\usepackage{pgfplots}
\definecolor{myblue}{rgb}{0.0,0.57,0.81}
\begin{document}
\begin{tikzpicture}
\begin{axis}[tick pos=left]
\addplot[color=myblueT!50,no markers,line width=1pt,each nth point={1}] table[x=time,y=Variable, col sep=semicolon] {curves.csv};
%space|tab|comma|colon|semicolon|braces|&|ampersand
\legend{$Variable$}
\end{axis}
\end{tikzpicture}
\end{document}