PyExcelerate
Accelerated Excel XLSX Writing Library for Python 2/3
Decision gist · record as of 2026-08-14
Yes. PyExcelerate is actively maintained, has low install friction, carries no known security vulnerabilities, and uses a permissive license. It is well-suited for projects that prioritize XLSX generation speed over a large feature surface. If you need advanced styling, conditional formatting, or read support, evaluate alternatives; otherwise, it's a solid choice for fast spreadsheet export.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Low install friction with a pure-wheel distribution and only two lightweight runtime dependencies (Jinja2 and six).
- Actively maintained with a recent release in 2025 and an active repository.
License · maintenance · safety
permissive license (permissive) — Licensed under Simplified BSD License (permissive), which allows commercial and private use with minimal restrictions—suitable for most projects.
last release 2025-05-23 (448 days) · last repo commit 2026-08-13 · 559 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 521,818 downloads/mo, #6,205 on PyPI
Alternatives
Verify before relying
pip install pyexcelerate
from pyexcelerate import Workbook
data = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
wb = Workbook()
wb.new_sheet("sheet name", data=data)
wb.save("output.xlsx")- Whether the package remains compatible with Python versions beyond 3.8 (classifiers list 3.8 as the latest, but requires_python is unspecified)
- Current performance benchmarks relative to modern alternatives (published benchmarks are from Ubuntu 12.04 era)
What it is and what it does
PyExcelerate is a Python library for writing Excel-compatible XLSX files with a focus on speed. It provides three performance tiers—fastest, faster, and fast—allowing you to trade off convenience for execution time depending on your use case. The library handles bulk data writes, cell-by-cell updates, range operations, cell merging, and styling (fonts, fills, alignment, formats). Styling operations carry significant overhead and can increase execution time substantially, so the library encourages selective use.
The package depends on Jinja2 and six, making it lightweight to install. It supports writing data as 2D arrays, setting individual cell values with formulas and dates, and applying styles to cells, ranges, rows, and columns. The description emphasizes that styling should be used sparingly and provides guidance on the fastest approaches for common tasks.
Use it for
- Export large datasets to XLSX files quickly without styling overhead
- Generate Excel reports with bulk data and minimal formatting requirements
- Write cell-by-cell spreadsheets with formulas and datetime values
- Apply styling to specific cells or ranges when performance is less critical
- Merge cells and organize data into named ranges within a workbook
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
PyExcelerate is actively maintained, has low install friction, carries no known security vulnerabilities, and uses a permissive license. It is well-suited for projects that prioritize XLSX generation speed over a large feature surface. If you need advanced styling, conditional formatting, or read support, evaluate alternatives; otherwise, it's a solid choice for fast spreadsheet export.
Install
pyexcelerate on PyPI
Before you install
Low install friction with a pure-wheel distribution and only two lightweight runtime dependencies (Jinja2 and six). Actively maintained with a recent release in 2025 and an active repository.
License in practice
Licensed under Simplified BSD License (permissive), which allows commercial and private use with minimal restrictions—suitable for most projects.
Quickstart
pip install pyexcelerate
from pyexcelerate import Workbook
data = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
wb = Workbook()
wb.new_sheet("sheet name", data=data)
wb.save("output.xlsx")Verify before relying
- Whether the package remains compatible with Python versions beyond 3.8 (classifiers list 3.8 as the latest, but requires_python is unspecified)
- Current performance benchmarks relative to modern alternatives (published benchmarks are from Ubuntu 12.04 era)
Package facts
| License | permissive license permissive |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packagesJinja2six |
| Maintenance | Actively maintained 448 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 521,818 / month, #6,205 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaIntended Audience :: DevelopersLicense :: OSI Approved :: BSD LicenseProgramming Language :: Python :: 2.7Programming Language :: Python :: 3.4Programming Language :: Python :: 3.5Programming Language :: Python :: 3.6Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8 |
Evidence: pyexcelerate-0.13.0-py3-none-any.whl
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See also openpyxl · xlsxwriter · pyxlsx · xlwt · pyexcel-xlsx · aspose-cells · aspose-cells-python · xlrd3 · spire-xls · pyexcel-xls