s
sergio_martin_f

Sergio

@sergio_martin_f

I will clean, fix and automate your Excel and Google Sheets

Spain
English, Spanish
About me
Drowning in messy spreadsheets, broken formulas or manual copy-paste work? I'll fix it. I'm a Computer Science student and I turn chaotic spreadsheets into clean, automated, ready-to-use files. I work with Excel and Google Sheets. I can help you with: cleaning and formatting messy data, building and fixing formulas (VLOOKUP, INDEX/MATCH, etc.), automating repetitive tasks, creating dashboards and charts, removing duplicates, merging files, and more.... Read more

Skills

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sergio_martin_f
Sergio
Offline • 

See my services

Automations
I will clean, fix and automate your excel and google sheets
From$10 / projectMore details
Automations
I will write a python script to automate your repetitive tasks
From$15 / projectMore details

Portfolio

Work experience

Self_Employed

Freelance Data & Automation Specialist

Self Employed • Freelance

Apr 2026 - Present • 3 mos

I provide freelance data and automation services for individuals and small businesses. I clean and standardize messy spreadsheets, build and fix Excel and Google Sheets formulas and macros (VBA), design dashboards, and write Python scripts that automate repetitive tasks such as data cleaning, file processing and web scraping. I focus on delivering finished, ready-to-use files with clear documentation, fast turnaround, and revisions included.