Tools / Spreadsheet Tools

Spreadsheet Tools

Convert between CSV and Excel formats directly in your browser — your data never leaves your device.

CSV to Excel Converter

Turn a CSV file into a ready-to-open Excel (.xlsx) workbook.

Excel to CSV Converter

Turn an Excel workbook into plain CSV — pick the sheet if there's more than one.

Frequently Asked Questions

How do I convert a CSV file to Excel (.xlsx) for free?

Use the Softstribe CSV to Excel Converter. Upload your .csv file and click Convert. The tool generates a properly formatted .xlsx workbook you can open directly in Microsoft Excel, Google Sheets or LibreOffice Calc. No signup or software installation required.

How do I convert an Excel file to CSV online?

Use the Softstribe Excel to CSV Converter. Upload your .xlsx or .xls file. If the workbook has multiple sheets, you can select which one to export. The tool converts it to a standard .csv file ready for import into databases, CRMs or other applications.

What is the difference between CSV and Excel (XLSX)?

CSV (Comma-Separated Values) is a plain text format that stores data as rows and columns separated by commas. It's universally compatible but stores no formatting, formulas or multiple sheets. Excel (.xlsx) is a binary format that supports formatting, formulas, multiple sheets, charts and more. CSV is best for data portability; Excel is best for rich spreadsheet work.

Is my spreadsheet data safe when converting online?

Yes. All Softstribe spreadsheet conversions happen entirely in your browser. Your CSV or Excel files are never sent to any server. The conversion runs locally using JavaScript, so your data stays completely private on your device.