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I will clean and validate your data in excel or python
Data Cleaning Specialist
I specialize in data cleansing, validation, and automation using Excel, SQL, and Python (pandas). I build custom, reusable scripts to automate repetitive business tasks, handle messy sheets, resolve d...
About this Gig
Are messy spreadsheets, inconsistent formatting, or broken data models slowing you down? I transform complex, unstructured data into clean, verified datasets you can rely on.
What I Can Do For Your Data:
- Deduplication & Formatting: Remove duplicates, trim whitespace, and standardize dates, text, and numbers.
- Error Correction & Auditing: Fix broken formulas, handle missing/NULL values, and ensure total data integrity.
- Multi-Table Reconciliation: Reconcile cross-table discrepancies using advanced Excel formulas (XLOOKUP, INDEX/MATCH) or SQL.
- Text Extraction & RegEx: Parse unstructured text logs, isolate patterns (SKUs, IDs, tracking numbers, phone numbers, emails), and sanitize sensitive PII data.
Why Choose This Gig?
- Technical Precision: Every dataset is verified for structural integrity and logical consistency.
- Multi-Tool Expertise: Proficient across Excel, SQL, and Python data pipelines.
- Clear Communication: Delivered with a summary breakdown of all updates made to your file.
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FAQ
What file formats do you accept for data cleaning?
I work with Excel workbooks (.xlsx, .xsl), CSV files (.csv), TSV files, Google Sheets links, and raw SQL/database exports. If your data is in a different format, feel free to send a message before ordering!
How do you handle dataset confidentiality and data privacy?
Confidentiality is important above all else. All datasets, customer records, and internal files provided are strictly protected, used exclusively to complete your requested order, and permanently deleted after delivery.
What if I have specific rules or custom guidelines for how my data should be formatted/cleaned?
Simply attach your formatting rules or guidelines alongside your dataset when placing the order. I will ensure every transformation strictly adheres to your required schema, naming conventions, and logic.
Can you provide the Python script or Excel formulas used to clean my data?
Yes! If you need a reusable .py script or an Excel workbook with live, dynamic formulas intact (rather than static values), just let me know in your order notes and I will deliver it fully documented.
Can I send a small sample file before placing a larger order?
Absolutely. If you want to verify that my cleaning approach aligns with your expectations before committing to a large dataset, feel free to send a message with a small sample snippet!
