---
name: Bug Report
about: Report a bug to help us improve
title: "[Bug] "
labels: bug
assignees: ""
---

## Description

A clear description of the bug.

## Steps to Reproduce

```python
from rustpy_xlsxwriter import FastExcel

# Minimal code to reproduce the issue
```

## Expected Behavior

What you expected to happen.

## Actual Behavior

What actually happened. Include error messages or tracebacks if applicable.

## Environment

- **Python version**: `python --version`
- **rustpy-xlsxwriter version**: `python -c "from rustpy_xlsxwriter import get_version; print(get_version())"`
- **OS**: (e.g. Ubuntu 24.04, macOS 15, Windows 11)
- **Data source**: (Records / Pandas / Polars)
