Data validation and cleaning for CSV & Excel
Upload a file, run Excel data validation, apply one‑click fixes, and export a clean file. Convert between CSV and XLSX on export—upload in one format, download in the other.
Free · No signup required
From quick remove duplicates in Excel tasks to full data audit and data verification, RxLint helps protect data integrity in every CSV format or Excel file.
or drop file here
.csv, .xlsx, .xls · Single file · Max 5 MB What we catch
Duplicate rows Data deduplication for repeated entries.
Case inconsistency Unify casing across your columns.
Invisible characters Strip hidden Unicode lurking in cells.
Ragged rows Fix rows with the wrong column count.
Extra whitespace Trim leading and trailing spaces.
Mixed booleans Standardize true/false formats.
Empty columns Identify columns with no data.
How it works
1
Upload Drop your file or click to browse. We handle files up to 5 MB. 2
Review Review each issue for validation of data, then apply quick fixes where rules are clear. 3
Export Export your cleaned file after data verification and a final data audit pass. Ready to clean your data?
Fix excel files fast with guided data preparation and data deduplication.