Private in your browserNo upload to any server

Excel File Compressor Online

Choose one or more XLSX workbooks, set the maximum size in KB, and download the smallest safe copy your browser can create—without uploading the file.

Private: processed in your browser

PresetCustom preset1024 KB

Choose XLSX

Target size in KB

Compress file

Private: files stay on your device. The server receives no file. Some formats can only be reduced as ZIP.