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evo-excel-data-extraction

Utilities for exploring and extracting data from complex, multi-sheet Excel workbooks with irregular formatting. Provides functions to discover sheet structure, locate gold prices in IMF data, and extract country reserve data.

tasks-evolved/reserves-at-risk-calc/environment/skills/evo-excel-data-extraction/SKILL.md

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Sep 10, 2026
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# evo-excel-data-extraction

Utilities for reading IMF commodity price data and template workbook structures.

## Key Functions

- `extract_gold_price_series(filepath)` - Extract gold price (US$/troy oz) time series from IMF file. Returns list of (date_str, price) tuples.
- `extract_country_reserve_data(filepath, sheet_name, year_row=18)` - Extract country gold reserves from Value/Volume sheets. Returns dict with country data.
- `extract_total_reserves_data(filepath, year_row=18)` - Extract total reserves for 2025.
- `explore_sheet_structure(filepath)` - Get sheet dimensions and info.
- `extract_country_names_from_desc(desc_str)` - Parse country name from column description.

## Usage