Spreadsheet & CSV cleanup
- Combine exports using explicit field and date rules
- Review duplicates, missing values, and conflicting records
- Keep exceptions separate and reconcile every input row
- Define the output format and checks before work starts
Clean up your CSVs.
Understand your Python errors.
Focused help for repetitive data tasks and reproducible script problems.
Explore the examples, then discuss a clearly defined scope.
Python troubleshooting
- Reproduce one clearly described script problem
- Explain the cause with a minimal, reviewable fix
- Compare the same tests before and after the change
- Agree on environment, permissions, and acceptance criteria
A practical guide
Keep leading zeros and long CSV IDs safe in Python
A complete, runnable synthetic example, with checks for every identifier and a separate Excel import boundary.
Start with a general question
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