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>

venv/lib/python3.12/site-packages/xlsxwriter-3.2.9.dist-info/METADATA

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+Metadata-Version: 2.2
+Name: xlsxwriter
+Version: 3.2.9
+Summary: A Python module for creating Excel XLSX files.
+Home-page: https://github.com/jmcnamara/XlsxWriter
+Author: John McNamara
+Author-email: jmcnamara@cpan.org
+License: BSD-2-Clause
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: License :: OSI Approved :: BSD License
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 3 :: Only
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Programming Language :: Python :: 3.9
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
+Classifier: Programming Language :: Python :: 3.12
+Classifier: Programming Language :: Python :: 3.13
+Requires-Python: >=3.8
+License-File: LICENSE.txt
+Dynamic: author
+Dynamic: author-email
+Dynamic: classifier
+Dynamic: description
+Dynamic: home-page
+Dynamic: license
+Dynamic: requires-python
+Dynamic: summary
+
+XlsxWriter
+==========
+
+**XlsxWriter** is a Python module for writing files in the Excel 2007+ XLSX
+file format.
+
+XlsxWriter can be used to write text, numbers, formulas and hyperlinks to
+multiple worksheets and it supports features such as formatting and many more,
+including:
+
+* 100% compatible Excel XLSX files.
+* Full formatting.
+* Merged cells.
+* Defined names.
+* Charts.
+* Autofilters.
+* Data validation and drop down lists.
+* Conditional formatting.
+* Worksheet PNG/JPEG/GIF/BMP/WMF/EMF images.
+* Rich multi-format strings.
+* Cell comments.
+* Integration with Pandas and Polars.
+* Textboxes.
+* Support for adding Macros.
+* Memory optimization mode for writing large files.
+
+It supports Python 3.8+ and PyPy3 and uses standard libraries only.
+
+Here is a simple example:
+
+.. code-block:: python
+
+   import xlsxwriter
+
+   # Create an new Excel file and add a worksheet.
+   workbook = xlsxwriter.Workbook("demo.xlsx")
+   worksheet = workbook.add_worksheet()
+
+   # Widen the first column to make the text clearer.
+   worksheet.set_column("A:A", 20)
+
+   # Add a bold format to use to highlight cells.
+   bold = workbook.add_format({"bold": True})
+
+   # Write some simple text.
+   worksheet.write("A1", "Hello")
+
+   # Text with formatting.
+   worksheet.write("A2", "World", bold)
+
+   # Write some numbers, with row/column notation.
+   worksheet.write(2, 0, 123)
+   worksheet.write(3, 0, 123.456)
+
+   # Insert an image.
+   worksheet.insert_image("B5", "logo.png")
+
+   workbook.close()
+
+.. image:: https://raw.github.com/jmcnamara/XlsxWriter/master/dev/docs/source/_images/demo.png
+
+See the full documentation at: https://xlsxwriter.readthedocs.io
+
+Release notes: https://xlsxwriter.readthedocs.io/changes.html
+