Optimize your Excel files to reduce their size.
Drag & drop your Excel files here or click to browse
XLSX, XLS, CSV - Max 10 files
Upload your Excel file
Choose optimization options
Download the optimized file
100% local optimization. Files not sent to server.
Our intelligent Excel optimization tool analyzes your workbook and reduces its size while fully preserving your pivot tables, conditional formatting, data validations, and macros. Ideal for trimming a heavy financial report, a large customer database, an HR dashboard, or an accounting file, without losing any of the original structure.
No need to install Excel, buy a Microsoft 365 license, or use LibreOffice. Our tool compresses your XLSX, XLS, XLSM, and ODS files directly in the browser. Reduce the size of 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 optimizers, our Excel compression tool is 100% free and requires no registration, no account creation, and no credit card. No daily limits, no watermark added to your sheets. Optimize as many XLSX, XLS, XLSM, or ODS files as you want, immediately and without intrusive ads.
Processing is done directly in your browser, ensuring ultra-fast optimization. No upload to a remote server: your files stay on your device. Perfect for compressing 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.
Slim down your Excel workbooks before sharing them on Google Drive, OneDrive, Dropbox, SharePoint, or Notion. An optimized file uploads faster, takes less storage, and easily passes email attachment filters. 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 tool 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.