CSV Header Fixer
Fix multi-row headers in CSV files exported from analytics tools like Adapty, Adjust, or Chartmogul. Merge multiple header rows into a single clean header.
100% client-side processing - your files never leave your browser
Before
Revenue
Revenue
Users
Q1
Q2
Total
After
Revenue - Q1
Revenue - Q2
Users - Total
Upload Your File
Drag & drop a file here
or click to browse
Supported formats: CSV, XLSX, XLS (max 50MB)
Frequently Asked Questions
Common questions about this tool.
The next step is getting it into the sheet
This tool cleans the file up. SmoothSheet writes it into Google Sheets from our servers, so the rows land as one import instead of a frozen tab — however many there are.
Import a file to Google SheetsGoogle sign-in, no card. Free plan covers 10 uploads a month.