Initial commit: NRW Dienstplan Generator (Variante 2)

.github/copilot-instructions.md

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+Python project for creating Excel xlsx files with openpyxl library.
+
+## Project Structure
+- `src/main.py` - Main script for creating Excel files
+- `output/` - Directory for generated Excel files
+- `requirements.txt` - Python dependencies (openpyxl)
+- `.venv/` - Python virtual environment
+
+## Setup Instructions
+1. Virtual environment is already configured
+2. Dependencies are already installed
+3. Run the script: `python src/main.py`
+
+## Usage
+The main script demonstrates how to:
+- Create Excel workbooks
+- Add and format headers
+- Insert data rows
+- Apply styling (fonts, colors, alignment)
+- Adjust column widths
+- Save files with timestamps