A spreadsheet exercise can demonstrate accuracy without displaying real customer records. Keep the task small enough to explain every column and formula, and label the sheet as fictional.
Design task-based columns
Use case label, category, received date, status, next action, owner role and review date. Do not add contact, identity or financial fields simply to make the sheet look realistic. Define each status before creating dropdowns so “pending” does not mean several different things.
Test data quality
Try a missing date, an invalid status and a repeated case label. Explain how validation or a simple duplicate check catches the issue. Sort dates as dates rather than text. Avoid complex formulas you cannot explain during a walkthrough.
Explain the limits
A personal practice sheet is not a production banking system or an approved way to store customer records. Describe the controls that a real authorised tool would need without claiming your worksheet supplies them. Share a clean fictional copy rather than a live working file.
Your practice checklist
- Use a defined status list.
- Test dates and duplicate labels.
- Document the sheet’s limitations.
Key Takeaways
- Use a defined status list.
- Test dates and duplicate labels.
- Document the sheet’s limitations.
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