You will get Data Cleaning and Validation Service for Business Analysis
Project details
Dirty data can cost businesses time, money, and credibility. My Data Cleaning and Validation Service ensures your datasets—whether small or large, single-table or multi-table—are transformed into reliable assets for analysis. I handle duplicates, missing values, inconsistent formats, outliers, and incomplete records with precision. Every step is documented, verified, and delivered with a clear changelog so you can trust the integrity of your data.
What sets this project apart is my structured, client-focused approach: I don’t just clean data, I confirm that the results align with your business expectations. From quick fixes to complex multi-table integrity checks, I provide transparent reporting and tailored solutions. With my expertise, you gain clean, consistent, and analysis-ready data—empowering smarter decisions and stronger outcomes.
What sets this project apart is my structured, client-focused approach: I don’t just clean data, I confirm that the results align with your business expectations. From quick fixes to complex multi-table integrity checks, I provide transparent reporting and tailored solutions. With my expertise, you gain clean, consistent, and analysis-ready data—empowering smarter decisions and stronger outcomes.
What's included
| Service Tiers |
Starter
$20
|
Standard
$50
|
Advanced
$100
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 4 days |
Number of Revisions | 1 | 2 | 2 |
About Zsolt
Data Analyst | Excel Expert | Data Cleaning
Felsopakony, Hungary - 6:09 am local time
🛠️ Services I Offer:
- Python scripting for data cleaning, merging, and automation
- SQL queries and report generation from relational databases
- Advanced Excel modeling, formulas, and dashboard creation
- Google Sheets automation and real-time collaboration tools
- Data visualization using Excel, Python (Matplotlib/Seaborn), and BI tools
- End-to-end data analysis for business, finance, and operations
😊 Feel free to contact me if you have headache for these:
- “My Excel file is too slow and full of broken formulas”
- “I need to merge datasets but keep losing key info”
- “Our reports take hours to update manually”
- “We can’t make sense of our sales or customer data”
- “I need a dashboard that actually tells a story”
- “Our Google Sheets are a mess and not synced with SQL”
Steps for completing your project
After purchasing the project, send requirements so Zsolt can start the project.
Delivery time starts when Zsolt receives requirements from you.
Zsolt works on your project following the steps below.
Revisions may occur after the delivery date.
Assessment & Understanding
- Review the dataset (size, structure, and complexity). - Identify potential issues such as duplicates, missing values, inconsistent formats, or outliers. - Align expectations with the client’s business goals.
Data Profiling & Issue Detection
- Explore data types (numerical, categorical, text, etc.). - Detect dirty data: incomplete, outdated, inaccurate, or inconsistent records. - Document findings for transparency.