I will clean, format, and prepare your messy data for analysis in Excel

Dmytro Kovalenko
Dmytro Kovalenko Top Rated
4.8 (1.3k)· 2.3k orders completed ·Ukraine

About this service

Bad data wastes everyone's time. Duplicates, inconsistent formats, broken dates, merged cells, and stray characters quietly break every report downstream. I take your raw, messy files and hand back a clean, structured dataset that's ready to analyze, import, or share with confidence.

  • Remove duplicates, blanks, and inconsistent entries
  • Standardize dates, currencies, names, phone numbers, and text casing
  • Split, merge, and restructure columns into a tidy table format
  • Fix encoding issues, trailing spaces, and formula errors
  • Optional validation rules and a short notes file on what was changed

Why me: I treat your data like it's mine. I document every cleaning step so you can trust the result and reproduce it later if needed.

Just upload your file (Excel, CSV, or Google Sheets) and tell me how you plan to use the data. I'll confirm the scope and turnaround before starting. Clean data in, better decisions out, let's get your file sorted.

About the seller

Dmytro Kovalenko
Dmytro Kovalenko Top Rated
Senior React & Node engineer for complex web apps
4.8 (1.3k)

Senior full-stack engineer with 9 years building performant web applications. Deep TypeScript, React, Next.js, and Node.js expertise, plus solid DevOps and testing discipline. I've led teams and shipped products used by millions. I write maintainable code, communicate proactively, and care about long-term architecture, not just quick fixes.

FromUkraine
SpeaksUkrainian, English, Russian
LevelExpert
Orders2.3k
Contact me

Reviews

★ 4.8
1,288 reviews
for this service
E
Emily Carter
🌐 United States
6 days ago
5.0 (0)
Saved me hours. My customer list was a mess and now it imports perfectly into our CRM.
T
Tunde Adeyemi
🌐 Nigeria
1 month ago
5.0 (0)
Quick, accurate, and the notes file explaining the changes was really helpful.
Y
Yuki Tanaka
🌐 Japan
3 months ago
5.0 (0)
Cleaned 12k rows overnight. Perfect formatting on the dates and currencies.
A
Andrea Rossi
🌐 Italy
5 months ago
4.0 (0)
Good work, a few entries needed a second pass but he fixed them without fuss.
L
Lena Novak
🌐 Czech Republic
9 months ago
5.0 (0)
Reliable and fast. Already sent another file. Will keep coming back.

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