wolfxl-core

Pure-Rust spreadsheet reader with Excel number-format-aware cell rendering. Backs the wolfxl-cli previewer.

[dependencies]
wolfxl-core = "0.8"

use wolfxl_core::Workbook;

let mut wb = Workbook::open("examples/sample-financials.xlsx")?;
let sheet = wb.first_sheet()?;
let (rows, cols) = sheet.dimensions();
println!("{} rows x {} columns", rows, cols);
# Ok::<_, wolfxl_core::Error>(())

Scope

• In scope today: read xlsx / xls / xlsb / ods / csv values, extract best-effort number-format strings for primary OOXML paths via [calamine-styles] and the xl/styles.xml cellXfs walker fallback, classify formats into FormatCategory, render via format_cell, map workbook structure, and infer per-column schema/cardinality summaries.
• Not yet: write side.

The PyO3 layer in the sibling wolfxl PyPI package still owns its own xlsx implementation; unifying the two is follow-up work.

Exports

• Workbook, Sheet, Cell, CellValue
• format_cell, FormatCategory
• classify_sheet, WorkbookMap, SheetMap, SheetClass
• infer_sheet_schema, SheetSchema, ColumnSchema, InferredType, Cardinality

License

MIT