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FeaturedFile health and recommended actions in one place
Quick file diagnosis
Check CSV, Excel, and JSON files for duplicates, missing values, and formatting errors, then get recommended actions.
Supports CSV · XLSX · XLS · JSONUp to 50MB
Real diagnosis resultsShows results and supporting details calculated from the uploaded data.
Safe previewAction previews never modify the original file.
Upload a file to diagnose
We will inspect its data structure and potential errors.
Drop a file here or choose one
CSV · XLSX · XLS · JSON / up to 50MB