Convert your Excel files between different formats (XLSX, XLS, CSV).
Drag & drop your Excel files here or click to browse
XLSX, XLS, CSV - Max 10 files
Upload your Excel file
Choose the output format
Download the converted file
100% local processing. No data sent.
Our intelligent Excel converter opens your workbook and converts it to the format of your choice while fully preserving your pivot tables, conditional formatting, data validations, and macros (depending on the target format). Ideal for switching a financial report to ODS, sharing a customer database in CSV, or migrating an HR dashboard from one format to another without losing any of the original structure.
No need to install Excel, buy a Microsoft 365 license, or use LibreOffice. Our converter opens your XLSX, XLS, XLSM, ODS, and CSV files directly in the browser. Convert your quotes, invoices, schedules, stock lists, or tracking spreadsheets from any computer, even without Excel installed. Compatible with Windows, macOS, Linux, and Chromebook.
Unlike other online converters, our Excel conversion tool is 100% free and requires no registration, no account creation, and no credit card. No daily limits, no watermark added to your sheets. Convert as many XLSX, XLS, XLSM, ODS, or CSV files as you want, immediately and without intrusive ads.
Processing is done directly in your browser, ensuring ultra-fast conversion. No upload to a remote server: your files stay on your device. Perfect for converting an Excel file on an Android smartphone, iPhone, iPad, or tablet — on the go, in a meeting, or at a client site — without installing a heavy app.
Convert your Excel workbooks to the right format before sharing them on Google Drive, OneDrive, Dropbox, SharePoint, or Notion. A suitable format (CSV for database imports, ODS for LibreOffice, XLSX for Excel) improves compatibility and avoids version mismatches. Perfect for preparing a file before sending it via Slack, Microsoft Teams, or email to clients, suppliers, or colleagues.
Your sensitive documents deserve maximum protection. Our converter processes all files locally in your browser. No data is sent to our servers. Your financial reports, customer databases, HR sheets, payroll files, contracts, and confidential accounting files remain strictly private, in line with GDPR best practices.
Convert, merge, edit, optimize and protect your spreadsheets in a few clicks.