\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage[sb]{spectral}
\usepackage{microtype}
\usepackage{lipsum}
\begin{document}

\begin{center}\huge
\textbf{Spectral}
\end{center}


\subsection*{Regular}
\lipsum[1]

\subsection*{Italic}
\textit{\lipsum[2]}


\subsection*{Small Caps Regular}
\textsc{\lipsum[5]}

\subsection*{Bold}
\textbf{\lipsum[3]}

\subsection*{Bold Italic}
\textbf{\emph{\lipsum[4]}}

\subsection*{Extra Light}
{\spectralextralight\lipsum[5]}

\subsection*{Light}
{\spectrallight\lipsum[6]}

\subsection*{Medium}
{\spectralmedium\lipsum[7]}

\subsection*{SemiBold}
{\spectralsemibold\lipsum[8]}

\subsection*{ExtraBold}
{\spectralextrabold\lipsum[9]}

\subsection*{Default Numbers}

1234567890

\subsection*{Oldstyle Numbers}

\oldstylenums{1234567890}

\subsection*{Lining Numbers}

\liningnums{1234567890}

\subsection*{Tabular Numbers}

\tabularnums{1234567890}

\subsection*{Proportional Numbers}

\proportionalnums{1234567890}

\subsection*{Superior Numbers}

X\textsu{1234567890}

\end{document}