You will get a clean, organized, and structured spreadsheet or dataset ready for use
Project details
Is your spreadsheet full of inconsistent formatting, duplicate entries, merged cells, missing values, or mixed data types? do you have scanned documents with the data that you're yet to extract? Is your data still in hard copy?
I will turn it into a clean, structured, analysis ready file you can actually use.
What I fix:
→ Inconsistent date, name, and number formats
→ Duplicate or near duplicate records
→ Blank rows, merged cells, and broken formulas
→ Misaligned columns and incorrect data types
→ Inconsistent category names and spelling variations
What you receive:
→ A fully cleaned and standardized spreadsheet
→ A summary of all changes made(if required)
→ Proper column headers, data validation, and formatting
I work with Google Sheets, Airtable, Microsoft Excel, and CSV files.
If your dataset is larger than the package size, message me before ordering and I will create a custom quote.
I have a background in data management and have built complete data systems for organizations, so I don't just clean your data, I structure it in a way that makes it genuinely useful going forward
Need a full database built after your data is cleaned? See my Airtable Database Setup service.
I will turn it into a clean, structured, analysis ready file you can actually use.
What I fix:
→ Inconsistent date, name, and number formats
→ Duplicate or near duplicate records
→ Blank rows, merged cells, and broken formulas
→ Misaligned columns and incorrect data types
→ Inconsistent category names and spelling variations
What you receive:
→ A fully cleaned and standardized spreadsheet
→ A summary of all changes made(if required)
→ Proper column headers, data validation, and formatting
I work with Google Sheets, Airtable, Microsoft Excel, and CSV files.
If your dataset is larger than the package size, message me before ordering and I will create a custom quote.
I have a background in data management and have built complete data systems for organizations, so I don't just clean your data, I structure it in a way that makes it genuinely useful going forward
Need a full database built after your data is cleaned? See my Airtable Database Setup service.
What's included
| Service Tiers |
Starter
$30
|
Standard
$60
|
Advanced
$90
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | 1 | 2 | 2 |
About Nkechi Maryann
Data Analyst & Systems Consultant |SQL, PowBI, Airtable, Google sheets
Abuja, Nigeria - 6:21 pm local time
I specialize in:
- Data Analytics & Visualization: SQL, Power BI, Tableau, Looker Studio, Excel; analyzing datasets, building dashboards, and translating data into business insights
- Data Systems & Automation: Airtable and Google Sheets database design, Google Forms and Airtable Forms connected to live data pipelines, automated form-to-dashboard workflows with zero manual transfer
- Multi-layer data architectures separating restricted sensitive records from operational working data; for healthcare providers and organizations handling confidential information
- B2B Data Research & Enrichment: verified prospect lists, contact research, and data enrichment using Apollo, Hunter, and Clay
- Looker Studio dashboards for real-time clinical, financial, and program reporting
- Paper register and legacy data digitization: converting physical records into searchable digital systems
- Data cleaning and restructuring ; fixing messy, inconsistent spreadsheets
- Ongoing remote data maintenance and monthly reporting
Recent projects include:
A beneficiary management system for an NGO tracking 350+ program participants across three Nigerian states — with duplicate detection logic, color-coded status tracking, and a live Looker Studio dashboard.
A two-layer patient data system for a private clinic — separating restricted patient identity records from clinical visit logs, with auto-generating Patient IDs, real-time form-to-database streaming, and a two-page financial and clinical dashboard.
Data analytics projects covering COVID-19 global data using SQL and Tableau, HR workforce analytics using Power BI (1,470 records, 35 variables), global methane emissions analysis, air quality mapping across Europe, and Excel-based business dashboards — published on GitHub and Medium.
What makes my approach different is that I combine technical data skills with a background in office and operations management. I understand how organizations actually function from the inside and not just the technology side.
If you are ready to stop managing your data manually or to finally make sense of the data you already have, let's talk.
Steps for completing your project
After purchasing the project, send requirements so Nkechi Maryann can start the project.
Delivery time starts when Nkechi Maryann receives requirements from you.
Nkechi Maryann works on your project following the steps below.
Revisions may occur after the delivery date.
Access
You share your spreadsheet or dataset file with me
Auditing the data
I identifying inconsistencies, duplicates, formatting errors, and missing values