analyzing-spreadsheets

Solid

Processes Excel spreadsheet files (.xlsx, .xlsm, .csv). Creates workbooks, builds formulas, preserves formatting, analyzes tabular data, and validates financial models with zero-formula-error delivery. Use when working with spreadsheet files or tabular data analysis. Do NOT use for Word documents, PDFs, presentations, or database pipelines.

Data & Documents 228 stars 30 forks Updated today MIT

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Quality Score: 92/100

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Recency 20%

100

Frontmatter 20%

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Issue Health 10%

License 10%

100

Description 5%

100

Skill Content

# XLSX Processing Create, edit, analyze `.xlsx` files. LibreOffice required for formula recalculation via `recalc.py`. ## Iron Rule **Zero formula errors at delivery.** All formulas must compute — no `#REF!`, `#DIV/0!`, `#VALUE!`, `#N/A`, `#NAME?`. Always run `recalc.py` after writing formulas. ## Decision Matrix | Task | Tool | Reference | |------|------|-----------| | Data analysis, bulk ops, simple export | pandas | [recipes.md](references/recipes.md) | | Formulas, formatting, Excel features | openpyxl | [recipes.md](references/recipes.md) | | Financial model standards | — | [financial-model.md](references/financial-model.md) | | Recalculate formulas | `recalc.py` | [recipes.md](references/recipes.md) | ## Common Workflow 1. **Choose tool**: pandas for data, openpyxl for formulas/formatting 2. **Create/Load** workbook 3. **Modify** data, formulas, formatting 4. **Save** 5. **Recalculate** (MANDATORY if formulas): `python recalc.py output.xlsx` 6. **Verify & fix errors** — check JSON output, fix `#REF!` / `#DIV/0!` / `#VALUE!` / `#NAME?` ## Hard Constraints - **Use formulas, not hardcoded values** — calculations stay dynamic. See [recipes.md](references/recipes.md#critical-use-formulas-not-hardcoded-values). - **Preserve existing templates** — match existing format/style EXACTLY when updating; user template overrides defaults. - **Financial models** — follow color/format conventions in [financial-model.md](references/financial-model.md). ## Code Style - Concise P...

Details

Author: telagod
Repository: telagod/code-abyss
Created: 4 months ago
Last Updated: today
Language: JavaScript
License: MIT

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