\documentclass{article}
\usepackage[textwidth=7in]{geometry}
\usepackage{fontspec}
\usepackage[default]{cabin}
\newfontfamily\Fellfloweri{FeFlow1.otf}
\newfontfamily\Fellflowerii{FeFlow2.otf}
\begin{document}
\begin{center}\huge
\cabin FeFlow1.otf \\[4ex]
\end{center}

\begin{center}\Fellfloweri\fontsize{25}{30}\selectfont
\begin{tabular}{cc}
\cabin A & A \\
\cabin B & B \\
\cabin C & C \\
\cabin D & D \\
\cabin E & E \\
\cabin F & F \\
\cabin G & G \\
\cabin H & H \\
\cabin I & I \\
\cabin J & J 
\end{tabular}
\quad
\begin{tabular}{cc}
\cabin K & K \\
\cabin L & L \\
\cabin M & M \\
\cabin N & N \\
\cabin O & O \\
\cabin P & P \\
\cabin Q & Q \\
\cabin R & R \\
\cabin S & S \\
\cabin T & T 
\end{tabular}
\quad
\begin{tabular}{cc}
\cabin U & U \\
\cabin V & V \\
\cabin W & W \\
\cabin X & X \\
\cabin Y & Y \\
\cabin Z & Z \\
\cabin a & a \\
\cabin b & b \\
\cabin c & c \\
& 
\end{tabular}
\end{center}
\newpage
\begin{center}\huge
\cabin FeFlow2.otf \\[4ex]
\end{center}

\begin{center}\Fellflowerii\fontsize{17.5}{25}\selectfont
\begin{tabular}{cc}
\cabin A & A \\
\cabin B & B \\
\cabin C & C \\
\cabin D & D \\
\cabin E & E \\
\cabin F & F \\
\cabin G & G \\
\cabin H & H \\
\cabin I & I \\
\cabin J & J \\
\end{tabular}
\quad
\begin{tabular}{cc}
\cabin K & K \\
\cabin L & L \\
\cabin M & M \\
\cabin N & N \\
\cabin O & O \\
\cabin P & P \\
\cabin Q & Q \\
\cabin R & R \\
\cabin S & S \\
\cabin T & T \\
\end{tabular}
\quad
\begin{tabular}{cc}
\cabin U & U \\
\cabin V & V \\
\cabin W & W \\
\cabin X & X \\
\cabin Y & Y \\
\cabin Z & Z \\
\cabin a & a \\
\cabin b & b \\
\cabin c & c \\
\cabin d & d \\
\end{tabular}
\quad
\begin{tabular}{cc}
\cabin g & g \\
\cabin j & j \\
\cabin k & k \\
\cabin l & l \\
\cabin m & m \\
\cabin n & n \\
\cabin o & o \\
\cabin p & p \\
\cabin q & q \\
\cabin r & r \\
\end{tabular}
\quad
\begin{tabular}{cc}
\cabin s & s \\
\cabin t & t \\
\cabin u & u \\
\cabin v & v \\
\cabin w & w \\
\cabin x & x \\
\cabin y & y \\
\cabin z & z \\
\cabin 1 & 1 \\
\cabin 2 & 2
\end{tabular}
\end{center}
\end{document}
