excel-lookup-formulas-gnumeric-compatible
100 / 100 · Low risk
Fine to try.
How to write lookup formulas (INDEX/MATCH, VLOOKUP, SUMPRODUCT-based lookups) that work in both Excel and Gnumeric/LibreOffice for multi-condition lookups. Use this when filling cells with formulas that reference data based on multiple criteria.
What this skill can do
We found nothing in the files we read that matches our rules. That does not prove the skill is safe: see the limits of static scanning.
Install
Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.
if [ -e ~/.agents/skills/'excel-lookup-formulas-gnumeric-compatible' ] || [ -L ~/.agents/skills/'excel-lookup-formulas-gnumeric-compatible' ]; then echo 'A skill folder named excel-lookup-formulas-gnumeric-compatible already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/cxcscmu/SkillLearnBench' "$d" && git -C "$d" checkout --quiet '726e1f79b96b0cb3d729d0e55a1c847e0b5353ae' -- 'skills/b3-teacher-feedback-claude-opus-4-6/weighted-gdp-calculation/run3_excel-lookup-formulas-gnumeric-compatible' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/b3-teacher-feedback-claude-opus-4-6/weighted-gdp-calculation/run3_excel-lookup-formulas-gnumeric-compatible' ~/.agents/skills/'excel-lookup-formulas-gnumeric-compatible' && rm -rf "$d"; fi
Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'excel-lookup-formulas-gnumeric-compatible' ~/.claude/skills/'excel-lookup-formulas-gnumeric-compatible' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.
Badge for your README
[](https://zalavijaysinh.github.io/skilltrust/repos/cxcscmu/SkillLearnBench/)
Score history
| Date | Version | Score |
|---|---|---|
| 2026-11-07 | 726e1f7 | 100 |