latex-tables

LaTeX Tables with tabularray

Self-Evolving Skill: This skill improves through use. If instructions are wrong, parameters drifted, or a workaround was needed — fix this file immediately, don't defer. Only update for real, reproducible issues.

When to Use This Skill

Use this skill when:

• Creating tables with fixed-width columns
• Formatting complex table layouts
• Need precise column alignment
• Migrating from tabular/tabularx/longtable/booktabs
• Troubleshooting table overflow issues

Quick Reference

Why tabularray?

Modern LaTeX3 package (replaces old solutions):

• Fixed-width columns with proper alignment
• Clean, consistent syntax
• Replaces: tabular, tabularx, longtable, booktabs
• Better performance than legacy packages
• Part of TeX Live 2025

---

Installation

# Check if installed
kpsewhich tabularray.sty

# If not found, install:
sudo tlmgr install tabularray

Basic Usage

\documentclass{article}
\usepackage{tabularray}  % Modern table package

\begin{document}
% Simple table
\begin{tblr}{colspec={ccc}, hlines, vlines}
  Header 1 & Header 2 & Header 3 \\
  Data 1   & Data 2   & Data 3   \\
\end{tblr}
\end{document}

---

Quick Reference Card

% Minimal table
\begin{tblr}{colspec={ccc}}
  A & B & C \\
\end{tblr}

% With all lines
\begin{tblr}{colspec={ccc}, hlines, vlines}
  A & B & C \\
\end{tblr}

% Fixed widths
\begin{tblr}{colspec={Q[2cm] Q[3cm] Q[2cm]}, hlines}
  A & B & C \\
\end{tblr}

% Bold header
\begin{tblr}{
  colspec={ccc},
  row{1}={font=\bfseries}
}
  Header & Header & Header \\
  Data   & Data   & Data   \\
\end{tblr}

---

Best Practices

1. Use Q[width] for fixed columns instead of p{width}
2. Specify widths explicitly when text might overflow
3. Use X for flexible columns that should expand
4. Style headers with row{1} instead of manual formatting
5. Use colspec for column properties, not inline commands
6. Check package version: kpsewhich tabularray.sty (should be recent)

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Reference Documentation

For detailed information, see:

• Table Patterns - 5 common table patterns with examples
• Column Specification - Alignment options and width control
• Lines and Borders - All lines, selective lines, thick lines
• Troubleshooting - Table too wide, text not wrapping, alignment issues
• Migration - Migrating from tabular and tabularx

Official Docs: Run texdoc tabularray for complete package documentation

See Also:

• Use latex/setup skill for installing tabularray package
• Use latex/build skill for compilation workflows

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Troubleshooting

Issue	Cause	Solution
Package not found	tabularray not installed	sudo tlmgr install tabularray
Table too wide	Fixed widths exceed page	Use smaller Q[width] values or X for flexible
Text not wrapping	Column spec missing width	Use Q[width] instead of c/l/r for wrapping
Alignment issues	Mixed column types	Ensure all columns have consistent spec
Compile error on colspec	Invalid syntax	Check for missing commas or typos in column spec
hlines not appearing	Missing from spec	Add hlines to the spec: {colspec={...}, hlines}
Row style not applied	Wrong row index	Remember row{1} is first row (1-indexed)
Package version too old	TeX Live outdated	sudo tlmgr update --self --all

Post-Execution Reflection

After this skill completes, check before closing:

1. Did the command succeed? — If not, fix the instruction or error table that caused the failure.
2. Did parameters or output change? — If the underlying tool's interface drifted, update Usage examples and Parameters table to match.
3. Was a workaround needed? — If you had to improvise (different flags, extra steps), update this SKILL.md so the next invocation doesn't need the same workaround.

Only update if the issue is real and reproducible — not speculative.