Need to convert XLSX or CSV files without installing software? Our free online tool helps you instantly convert your spreadsheet files to formats like XLS, JSON, TXT, HTML, PDF, XML, and SQL. It’s fast, secure, and works right from your browser — no sign-up or upload limits.

Available Conversions

  • XLSX to XLS – Preserve Microsoft Excel formatting in legacy format.
  • XLSX to CSV – Extract raw data from Excel for easy data processing.
  • XLSX to JSON – Convert Excel rows to JSON structure for APIs or NoSQL usage.
  • XLSX to TXT – Get plain text output from XLSX spreadsheet files.
  • XLSX to HTML – Turn Excel tables into HTML pages or embeddable web content.
  • XLSX to PDF – Create printable or shareable PDF documents from Excel files.
  • XLSX to XML – Convert spreadsheet data to structured XML format.
  • XLSX to SQL – Generate SQL insert scripts from Excel spreadsheet tables.
  • CSV to XLS – Convert plain CSV data back to rich Excel format.
  • CSV to XLSX – Transform CSV files into modern Excel (.xlsx) format.
  • CSV to JSON – Convert CSV rows into structured JSON arrays or objects.
  • CSV to TXT – Export CSV as plain text with proper delimiters.
  • CSV to HTML – Create HTML tables from CSV content with a single click.
  • CSV to PDF – Generate clean, printable PDF files from CSV data.
  • CSV to XML – Easily turn CSV rows into structured XML markup.
  • CSV to SQL – Generate SQL-compatible statements from CSV datasets.

Start converting your files now! Just upload your XLSX or CSV file and download the output in your desired format. It’s quick, 100% free, and fully browser-based — no data leaves your device.