THE RIGHT TOOL FOR THE JOB

Spreadsheet & CSV tools

Choose a task. Local tools keep your files on your device; server conversions are clearly labeled.

Convert CSV rows to an XLSX workbook while preserving leading zeros as text.

Export a selected XLSX worksheet as CSV with proper quoting and UTF-8 encoding.

Combine CSV files with matching headers into a single CSV in your chosen order.

Split a CSV into smaller files, preserving its header in each file.

Remove exact duplicate data rows while keeping the first occurrence and header.

Keep selected CSV columns in your chosen order using their column numbers.

Convert CSV rows into a pretty-printed JSON file. Choose whether the first row supplies column names.