# tfussell/xlnt

:bar_chart: Cross-platform user-friendly xlsx library for C++11+

Repository: https://github.com/tfussell/xlnt
Canonical: https://ross.abutalabs.com/products/xlnt
Language: C++
License: NOASSERTION
License Family: other
Topics: xlsx, spreadsheet, excel, cpp, c-plus-plus, api, microsoft, read, write
Last push: 2024-08-16T10:16:41+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4502, "days_push": 747, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1651, forks 430 (observed 2026-08-28T04:05:16.918621+00:00)

## What it is
xlnt is a modern C++11+ library for reading, writing, and manipulating XLSX spreadsheet files in memory, following the ECMA-376 standard. It provides a user-friendly API for creating workbooks, setting cell values and formulas, merging cells, and saving Excel-compatible files.

## Use cases
- read and write xlsx files from C++
- generate Excel spreadsheets programmatically
- parse spreadsheet data in a C++ application
- create workbooks with formulas and merged cells
- convert data to Excel format without Excel installed

## When to choose
- you need a native C++ library for XLSX files with no Excel dependency
- you want a cross-platform, MIT-licensed spreadsheet library
- you need a simple, high-level API for workbook manipulation

## When to avoid
- you need to read legacy .xls files
- you need heavy chart or pivot-table support
- you are working in Python or another language with openpyxl/pandas

## Facets
- artifact type: library
- maturity: maintenance
- function: serialization, file-system, developer-tools
- domain: files, spreadsheets, developer-tools, cross-platform
- platform: cross-platform, cpp, windows
- tags: xlsx, excel, spreadsheet, c-plus-plus, office-files, workbook, linux, macos

## Member repositories
- tfussell/xlnt (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:16.918621+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:45:03.275279+00:00, confidence not recorded.
  - readme: https://github.com/tfussell/xlnt (fetched 2026-08-28T04:05:16.918621+00:00, sha 282fcaf7fb1a)
- Data as of 2026-08-30T08:39:29.467469+00:00.