andrei 0e2e1bddba Add xlsxwriter-based Excel generation scripts with openpyxl implementation ...

- Created create_excel_xlsxwriter.py and update_excel_xlsxwriter.py
- Uses openpyxl exclusively to preserve Excel formatting and formulas
- Updated server.js to use new xlsxwriter scripts for form submissions
- Maintains all original functionality while ensuring proper Excel file handling

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

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..

__init__.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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app.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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chart_area.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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chart_bar.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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chart_column.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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chart_doughnut.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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chart_line.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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chart_pie.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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chart_radar.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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chart_scatter.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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chart_stock.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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chart_title.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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chart.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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chartsheet.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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color.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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comments.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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contenttypes.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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core.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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custom.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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drawing.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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exceptions.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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feature_property_bag.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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format.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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image.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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metadata.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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packager.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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relationships.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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rich_value_rel.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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rich_value_structure.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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rich_value_types.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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rich_value.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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shape.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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sharedstrings.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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styles.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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table.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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theme.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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url.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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utility.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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vml.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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workbook.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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worksheet.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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xmlwriter.py

Add xlsxwriter-based Excel generation scripts with openpyxl implementation

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