I generated this table using an Excel add-in. The table looks extremely small on the Latex file. What should I do to make it clearer and better looking?
\documentclass{article}
\usepackage{graphicx}
\usepackage{parskip}
\usepackage{amssymb}
\usepackage{eufrak}
\usepackage{amsmath}
\usepackage{amsxtra}
\usepackage{graphicx}
\begin{document}
\begin{table}[]
\caption{}
\label{tab:my-table}
\resizebox{1 \textwidth}{!}{
\begin{tabular}{ccccccccccccccc}
\hline
\multicolumn{1}{l}{} & \multicolumn{7}{c}{weqr} & \multicolumn{7}{c}{qwe} \ \hline
\multicolumn{1}{|c|}{} & \multicolumn{1}{c|}{qweifh} & \multicolumn{1}{c|}{sfhawd} & \multicolumn{1}{c|}{aefdaa} & \multicolumn{1}{c|}{wsedddwe} & \multicolumn{1}{c|}{ddadddd} & \multicolumn{1}{c|}{aedaedf} & \multicolumn{1}{c|}{dddddd} & \multicolumn{1}{c|}{dddddd} & \multicolumn{1}{c|}{ddddd} & \multicolumn{1}{c|}{ddddddd} & \multicolumn{1}{c|}{ddddd} & \multicolumn{1}{c|}{ddddd} & \multicolumn{1}{c|}{ddddd} & \multicolumn{1}{c|}{ddddddd} \ \hline
\multicolumn{1}{|c|}{ddd} & \multicolumn{1}{c|}{1} & \multicolumn{1}{c|}{2} & \multicolumn{1}{c|}{3} & \multicolumn{1}{c|}{4} & \multicolumn{1}{c|}{5} & \multicolumn{1}{c|}{5} & \multicolumn{1}{c|}{6} & \multicolumn{1}{c|}{7} & \multicolumn{1}{c|}{} & \multicolumn{1}{c|}{89} & \multicolumn{1}{c|}{0} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{9} & \multicolumn{1}{c|}{9} \ \hline
\multicolumn{1}{|c|}{ddddd} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{9} & \multicolumn{1}{c|}{9} \ \hline
\multicolumn{1}{|c|}{ddddd} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{9} & \multicolumn{1}{c|}{9} \ \hline
\multicolumn{1}{|c|}{ddd} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{9} & \multicolumn{1}{c|}{9} \ \hline
\multicolumn{1}{|c|}{\textbf{}} & \multicolumn{4}{c|}{\textbf{rtyrtyrtytryrtyrt}} & \multicolumn{10}{c|}{\textbf{tyututryrytr}} \ \hline
\multicolumn{1}{|c|}{\textbf{q}} & \multicolumn{1}{c|}{w} & \multicolumn{1}{c|}{e} & \multicolumn{1}{c|}{eee} & \multicolumn{1}{c|}{e} & \multicolumn{1}{c|}{e} & \multicolumn{1}{c|}{e} & \multicolumn{1}{c|}{e} & \multicolumn{1}{c|}{e} & \multicolumn{1}{c|}{e} & \multicolumn{1}{c|}{e} & \multicolumn{1}{c|}{e} & \multicolumn{1}{c|}{e} & \multicolumn{1}{c|}{e} & \multicolumn{1}{c|}{dddd} \ \hline
\multicolumn{1}{|c|}{ddd} & \multicolumn{1}{c|}{1} & \multicolumn{1}{c|}{2} & \multicolumn{1}{c|}{3} & \multicolumn{1}{c|}{4} & \multicolumn{1}{c|}{5} & \multicolumn{1}{c|}{5} & \multicolumn{1}{c|}{6} & \multicolumn{1}{c|}{7} & \multicolumn{1}{c|}{} & \multicolumn{1}{c|}{89} & \multicolumn{1}{c|}{0} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{9} & \multicolumn{1}{c|}{9} \ \hline
\multicolumn{1}{|c|}{ddddd} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{9} & \multicolumn{1}{c|}{9} \ \hline
\multicolumn{1}{|c|}{ddddd} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{9} & \multicolumn{1}{c|}{9} \ \hline
\multicolumn{1}{|c|}{ddd} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{\textbf{-}} & \multicolumn{1}{c|}{-} & \multicolumn{1}{c|}{9} & \multicolumn{1}{c|}{9} \ \hline
\end{tabular}
}
\end{table}
\end{document}

\resizeboxon a table is always a Very Bad Idea and typically leads to this sort of problem... If the table is too big, it should be redesigned, not scaled down. At the very least, remove the\resizeboxcommand. – Miyase Jun 07 '22 at 23:05longtablethat LaTeX can automaticallu split over several pages if necessary. – Miyase Jun 07 '22 at 23:14\documentclasscommand, followed by adocumentenvironment. As it is, if I copy-paste your code, it won't compile without me adding several lines of code. And I have no way of knowing if they would match what you're using. – Miyase Jun 07 '22 at 23:31\multicolumn{1}...s are mess; this Excel add in is making your life harder. It would be better just to import the values without any of the formatting, and apply the formatting after import. I don't see how changing the height will help. You could get a little more room by decreasing the tabcolsep length, but the structure of the table needs rethinking. I'd break it up somehow but without knowing what the data means, it's hard to give concrete advice about the best way to do that. Maybe a separate table for "weqr" and for "qwe", one over the other? – frabjous Jun 08 '22 at 00:15