CSV to Excel
Convert a CSV file to Excel (.xlsx) in your browser. Download a real spreadsheet — nothing is uploaded.
Excel to CSV
Convert Excel .xlsx or .xls to CSV in your browser. Choose a sheet and delimiter, then download.
Drop an Excel file here or click to choose
Processed locally — nothing is uploaded
How to use Excel to CSV
Convert an Excel .xlsx or .xls file to clean CSV. Pick a sheet and delimiter, then download the result.
Everything runs locally in your browser — your files are never uploaded to a server.
Excel to CSV FAQs
How do I convert Excel to CSV online?
Drop an .xlsx or .xls file, pick the sheet to export, choose a delimiter, then download the CSV. Processing stays in your browser.
Is Excel to CSV free?
Yes. Every Excel and CSV tool on ReallyUseful.Tools is free to use, with no account or subscription required.
Are my Excel files uploaded?
No. Files are processed in your browser on this device. Nothing is uploaded to our servers.
Can I export only one sheet from a workbook?
Yes. Select the sheet you want before downloading the CSV.
More Excel/CSV
CSV viewer
Open and browse a CSV in a paginated table in your browser. No upload — view large files locally.
Merge CSV files
Combine multiple CSV files into one in your browser. Rows are stacked and headers aligned by name.
CSV to XML
Convert CSV rows into structured XML in your browser. Each row becomes an element — nothing is uploaded.
CSV to SQL
Generate SQL INSERT statements from a CSV file in your browser. Set a table name and download .sql.