Shared Ribbon for a Multi-Team PyXLL Add-in

Problem Description

FinTech Analytics Ltd is building a PyXLL Excel add-in shared by two teams. Each team owns its own ribbon XML file to avoid version-control conflicts:

• The Data Science team defines an "Analytics" tab containing two groups: one for data preparation tools and one for running models. Each group should contain at least one button. Callbacks live in the ds_tools Python module.

• The Reporting team wants to add a "Reporting" group to the same Analytics tab — but it must appear between the two Data Science groups, not appended at the end. Callbacks live in report_tools.

Both XML files are loaded by PyXLL at startup and merged automatically. The final ribbon must show all three groups in the correct order: Prepare → Reporting → Models.

Output Specification

Produce three files:

• data_ribbon.xml — Data Science team's ribbon file (Analytics tab with two groups, each containing at least one button with a callback)
• report_ribbon.xml — Reporting team's ribbon file (adds the Reporting group to the Analytics tab, positioned between the two Data Science groups)
• pyxll.cfg — configuration snippet (just the [PYXLL] section) showing how PyXLL is configured to load both ribbon files