\documentclass[10pt]{article}
%% add format to path to use ArticlesTitles
\makeatletter
\def\input@path{{./format/}}
\makeatother
%% add packages used in general articles
\input{header.tex}
%% add cover and section titles format
\graphicspath{{./format}{./figures/}}
\usepackage[]{ArticlesTitles}
%% names for titles
\university{Universidad Torcuato Di Tella}
\career{Master in Management + Analytics}
\class{Optimización para la Toma de Decisiones}
\title{Trabajo Práctico}
\subtitle{Parte 1}
\author{Federico Duca}
\date{\today}
%% remove this
\usepackage{lipsum}
%% begin document
\begin{document}
\maketitle
\tableofcontents
\clearpage
\section{Primer título}
\lipsum[1-5]
\newpage
\section{Segundo título}
\lipsum[1-5]
\end{document}

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