Spreadsheet File Converters

7 spreadsheet conversions, processed server-side. Free and unlimited for files up to 5 MB, no account required, and files are deleted immediately after conversion.

• Convert CSV to Excel— Convert a CSV file to an Excel (.xlsx) spreadsheet
• Convert Excel to CSV— Convert the first sheet of an Excel file to CSV
• Convert JSON to XLSX— Convert a JSON array to an Excel spreadsheet
• Convert ODS to CSV— Convert an OpenDocument Spreadsheet to CSV
• Convert XLSX to ODS— Convert an Excel spreadsheet to OpenDocument format
• Convert Spreadsheet to HTML table— Render the first sheet of an Excel/ODS file as an HTML table
• Convert CSV to HTML table— Render a CSV file as an HTML table