\documentclass[a4paper, 18pt]{extarticle}

%% Language and font encodings
\usepackage[utf8x]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{helvet}

%% Sets page size and margins
\usepackage[a4paper,top=3cm,bottom=3cm,left=1.75cm,right=1.75cm,marginparwidth=1.75cm,headsep=0cm,headheight=90pt]{geometry}		% showframe
\usepackage{fancyhdr}			% header and footer
\usepackage{lastpage}
\usepackage{graphicx}
\usepackage{longtable}
\usepackage[table]{xcolor}
\usepackage{calc}
\usepackage{multirow,tabularx}
\usepackage[ddmmyyyy]{datetime}

\renewcommand{\dateseparator}{.}
\renewcommand{\familydefault}{\sfdefault}

% row color for long table
\definecolor{light-gray}{HTML}{E5E4E2}
\definecolor{dark-gray}{HTML}{BBBBBB}


\setlength{\footskip}{90pt}
\setlength{\voffset}{0pt}		% start position of the header

\fancyhfoffset[L]{\oddsidemargin + \hoffset + 1in}
\fancyhfoffset[R]{\evensidemargin + \marginparwidth - \marginparsep}

\setlength{\headwidth}{\paperwidth}
%\setlength{\footwidth}{\paperwidth}

\fancypagestyle{firstpage}{
    \renewcommand{\headrulewidth}{0pt}
    \renewcommand{\footrulewidth}{0pt}
    \fancyhf{}		% clear all header and footer fields
    \fancyhead[C]{
		\IfFileExists{header_first.png}{\makebox[\paperwidth][c]{\includegraphics[width=\paperwidth]{header_first.png}}}{}
	}
    \fancyfoot[C]{
		\IfFileExists{footer.png}{\makebox[\paperwidth][c]{\includegraphics[width=\paperwidth]{footer.png}}}{}
	}
}

\fancypagestyle{mainstyle}{
    \renewcommand{\headrulewidth}{0pt}
    \renewcommand{\footrulewidth}{0pt}
    \fancyhf{}		% clear all header and footer fields
    \fancyhead[C]{
		\IfFileExists{header.png}{\makebox[\paperwidth][c]{\includegraphics[width=\paperwidth]{header.png}}}{}
	}
	\fancyfoot[C]{
		\begin{tabular}[b]{@{} c @{}}		% '@{}' removes the default margin for columns
			\makebox[9cm][l]{\small{Erstellt am: \today}}
			\makebox[9cm][r]{\small{Seite \thepage\ von \pageref{LastPage}}}
			\\
			\IfFileExists{footer.png}{\makebox[\paperwidth][c]{\includegraphics[width=\paperwidth]{footer.png}}}{\\ \\ \\}
		\end{tabular}
	}
}

\begin{document} 

\thispagestyle{firstpage}

\vspace*{4cm}

\begin{center}
	\Huge{\textbf{%FRACTIONNAME \linebreak %TOURNAME}}
\end{center}

\vspace{3cm}

\def\arraystretch{1.5}		% stretch row height
\begin{table}[h]
	\centering
		\Large
		\begin{tabular}{|l|r|}
			\hline
			%INFO_TABLE_ROWS
		\end{tabular}
\end{table}

\newpage


\pagestyle{mainstyle}

%SCREENSHOTS


\def\arraystretch{1.5}		% stretch row height
\begin{longtable}{|p{.30\textwidth}|p{.1\textwidth}|p{.075\textwidth}|p{.075\textwidth}|p{.1\textwidth}|}
	\showrowcolors
	\hline
	%ADDRESS_TABLE_HEADER
	\hline
	\endhead % all the lines above this will be repeated on every page
	%ADDRESS_TABLE_ROWS
\end{longtable}
	
\end{document}