\documentclass[11pt,a4paper]{article}
\usepackage{cmbright}
\usepackage{booktabs}
\usepackage{marginnote} % Required for margin notes
\usepackage[
paperheight=15cm,
paperwidth=18cm,
left=-5cm,
right=-3cm,
top=0.5cm,
bottom=0cm,
marginparsep=-5.5cm,
marginparwidth=4cm
]{geometry} % Required for page customization
\usepackage{amsmath} % Required for equation customization
\usepackage{amssymb} % Required to include mathematical symbols
\usepackage[italian]{babel}
\newcommand{\VAR}[1]{}
\newcommand{\BLOCK}[1]{}

\begin{document}
\VAR{place_holder}
    % \input{sheet-MatConcrete-NTC2018-ita}
\end{document}
