FixMySheet
100% in-browser, zero-upload Excel & CSV cleaner
What it does
FixMySheet is a fast, privacy-first utility that cleans messy Excel (.xlsx) and CSV files directly inside your browser. Your data never touches a server or leaves your device. Key Features: • Auto-trim whitespace & trailing spaces • Remove duplicate or completely empty rows • Standardize chaotic date formats to YYYY-MM-DD • Auto-detect and split full name columns into First & Last Name • Instant preview & clean download with zero processing queues
Free browser-based Excel and CSV cleaner: trim whitespace, remove duplicates and empty rows, normalize dates to YYYY-MM-DD, fix casing and split name columns. No uploads.
Trim whitespace, kill duplicates, normalize dates and split name columns — then download a tidy .xlsx or .csv. Your file never leaves your device. or click to browse · .xlsx, .xls, .csv · processed in your browser Blank fields in the kept record are filled from its duplicate. Adds First Name and Last Name columns. Handles "Doe, Jane" too. Exported spreadsheets rarely arrive import-ready. Padded cells, repeated rows, three different date formats in one column and a single "Full Name" field break lookups, pivot tables and CRM imports. Follow the steps below to fix the most common CSV and Excel errors in one pass. Drop an .xlsx, .xls or .csv export. The first non-empty row becomes your header…from fixmysheet.pages.dev
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