CSV to Excel
Convert a CSV file to Excel (.xlsx) in your browser. Download a real spreadsheet — nothing is uploaded.
Export an Excel sheet to CSV with a comma, semicolon, or tab delimiter — entirely in your browser.
Drop an Excel file here or click to choose
Processed locally — nothing is uploaded
Export an Excel sheet to CSV with a custom delimiter (comma, semicolon, or tab).
Everything runs locally in your browser — your files are never uploaded to a server.
Drop an Excel file, choose a sheet, pick comma, semicolon, or tab, then download the CSV.
Yes. Every Excel and CSV tool on ReallyUseful.Tools is free to use, with no account or subscription required.
No. Files are processed in your browser on this device. Nothing is uploaded to our servers.
Use semicolon when the target system expects European-style CSV, or when values contain commas.
Convert a CSV file to Excel (.xlsx) in your browser. Download a real spreadsheet — nothing is uploaded.
Convert Excel .xlsx or .xls to CSV in your browser. Choose a sheet and delimiter, then download.
Open and browse a CSV in a paginated table in your browser. No upload — view large files locally.
Combine multiple CSV files into one in your browser. Rows are stacked and headers aligned by name.
Convert CSV rows into structured XML in your browser. Each row becomes an element — nothing is uploaded.