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6.1 Collaborative Spreadsheet Best Practices

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Module 6: Collaboration & Enterprise – Expanded » 6.1 Collaborative Spreadsheet Best Practices

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The $7.5 Billion Problem: Spreadsheet Risk

  • Famous disasters:

    • JP Morgan "London Whale" ($6B loss from faulty models)

    • TransAlta energy trading ($24M error)

    • 88% of corporate spreadsheets contain errors (EuSpRIG)

Enterprise-Grade Workflows

1. Version Control Systems

Tool Best For Implementation
Git + GitHub Technical teams Track changes in Excel via Power Query M code
SharePoint Corporate environments Native Excel version history
Google Version History Startups Color-coded collaborator tracking

Case Study:

  • How BlackRock manages 300+ interdependent models across teams

2. Permission Architecture

  • Tiered access levels:

    • Viewers (Execs)

    • Commenters (Advisors)

    • Editors (Analysts)

  • Cell-level locking:

    excel
  • Protect Sheet → Allow only certain cells

Assignment:

  • Configure IPO model permissions for:

    • Investment Bankers (full edit)

    • Lawyers (comment-only)

    • SEC (view-only)

Added on July 08, 2025
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Module Contents
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Course Overview Module 1: Foundations of Spreadsheet Mastery – Expanded Module 2: Advanced Formulas & Functions – Expanded Module 3: Data Visualization & Business Intelligence – Expanded Module 4: Automation & Efficiency – Expanded Module 5: Financial Modeling – Expanded Module 6: Collaboration & Enterprise – Expanded Capstone Module: Real-World Mastery Projects
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