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Fiverr Pro
English
$
USD
I will clean and process large excel CSV and json files with python
About this Gig
Do you have a large Excel, CSV or JSON file that is too slow, messy, or crashes your spreadsheet? I will clean, process, and transform large datasets with Python, using automated cloud pipelines when Excel is no longer enough. I specialize in high-volume data cleaning, transformation, validation, and structured reporting, handling millions of rows and complex JSON/CSV files efficiently and reliably. Your data will be fully analysis-ready, error-free, and audit-ready, suitable for reports, dashboards, or automated workflows.
Why choose me?
- Handle datasets too large for Excel, CSV, or JSON
- Reliable Python automation: fast, accurate, error-free
- Clean, validated, standardized, analysis-ready data
- Transparent audit-ready reporting with full documentation
- Efficient processing for large, complex datasets
What I do:
clean & normalize data, remove duplicates, fix missing values, validate structure, convert formats, build automated Python pipelines, generate structured reports.
PLEASE CONTACT ME BEFORE ORDERING
Every dataset is unique, and I want to provide the best custom Python solution for your data cleaning and automation needs.
FAQ
Can you handle very large files (e.g., 5GB+ or 10M+ rows)?
Absolutely. Unlike many others who use standard office software, I operate on a dedicated, resource-optimized Linux server environment. My Python pipeline is designed to process data in chunks, meaning file size is never an issue. If your computer can't open it, my system can.
How can I be sure my data was cleaned correctly?
Transparency is key. With my Standard and Premium packages, you receive a detailed Audit Report. This documents every single change made (e.g., number of duplicates removed, formatted cells, handled null values). You will see exactly what happened to your data.
Is my data secure with you?
Yes. I process all data on a secure, isolated server environment. Once the project is delivered and you have approved the results, I permanently delete all files from my server. I do not share or use your data for any other purposes.
Which file formats do you support?
I specialize in JSON, CSV, and Excel (XLSX). I can also handle conversions between these formats. If you have a specific or unusual data structure, please contact me first, and I will let you know if it's compatible.
What if my data is extremely "messy" or has a complex structure?
That is exactly what I specialize in! No matter how unorganized your data is, my Python scripts can be tailored to your specific logic. Please message me before ordering so we can discuss the cleaning rules and I can provide the most efficient solution for you.
