Make a heavy .xlsx smaller — your data and formulas stay exactly as they are.
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Choose your .xlsx
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We shrink it
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Download the smaller file
Your file stays private.
It is sent over an encrypted (HTTPS) connection, used only to make your result, and deleted as soon as you're done. Never shared, never sold, never looked at.
Privacy policy
An .xlsx file is really a zip of parts, and the biggest part is usually the pictures pasted into it. This tool re-encodes those embedded images and repacks the whole workbook with maximum compression. Every sheet, cell, number and formula is kept exactly as it was - only images get lighter.
Frequently asked questions
No. Only the embedded images are re-encoded and the file is repacked. All sheets, cells, numbers and formulas stay exactly as they were, and the result is checked that it still opens as a valid workbook.
Usually because of pasted photos or logos saved at full resolution, plus a workbook that was saved without much compression. This tool tackles both.
Yes - enter a size and the tool gets as close to it as possible by lowering image quality only as much as needed. A workbook with little or no imagery may not shrink much; then you get the smallest version possible.
It still repacks the workbook with maximum compression, which helps files that were saved loosely. If it can't be made any smaller, you get your original file back unchanged - never a bigger one.
Yes. Every tool on this site is free, with no signup, no account and no watermark.
It is deleted from our server as soon as the tool finishes, and runs with nothing stored.