Free online XLS to WEBP converter

Source format: xls

XLS is the classic Microsoft Excel spreadsheet format used by Excel 97–2003. It stores worksheets, formulas, formatting, charts, and sometimes macros in a binary file structure. XLS files are still common in older business systems, archived reports, and legacy office workflows.

People usually open XLS files in Microsoft Excel, LibreOffice Calc, or other spreadsheet applications. The format is best suited for editable tabular data, not for image-based sharing.

Target format: webp

WEBP is an image format developed by Google for efficient web graphics. It supports lossy and lossless compression, transparency, and animation. Compared with older image formats, WEBP often produces smaller files at similar visual quality, which makes it useful for websites, previews, and lightweight image distribution.

WEBP is widely supported by modern browsers, image editors, and operating systems. It is a good choice when you need to publish a spreadsheet as a static image rather than as an editable document.

How to perform the conversion

Converting XLS to WEBP is not a direct document-to-image workflow in most office apps. The usual approach is to render the spreadsheet as an image first, then save or export that image as WEBP. The easiest method is to use the built-in converter on 101convert.com, which lets you convert the file for free without installing any software.

1. Open the 101convert.com converter page for XLS to WEBP.
2. Upload your .xls file.
3. Wait for the spreadsheet to be rendered into an image preview.
4. Choose WEBP as the output format.
5. Download the converted .webp file.

If you prefer desktop software, use a spreadsheet app such as LibreOffice Calc or Microsoft Excel to open the XLS file, then export the visible sheet area as an image or PDF first, and convert that image to WEBP with an image editor such as GIMP or ImageMagick. For example, after exporting a sheet to PNG, you can convert it with magick input.png output.webp.

In LibreOffice, a common workflow is File → Export As → Export as PDF or File → Save As for image-based intermediate output, depending on the version and installed extensions. In Excel, you may need to copy the sheet area as a picture or print to PDF before converting to WEBP.

Notes on quality and limitations

XLS to WEBP is a one-way visual conversion: the result is an image, so formulas, cell editing, sorting, filters, and sheet structure are no longer usable. If the spreadsheet has multiple worksheets, only the selected sheet or captured view may be included unless you create separate images for each sheet.

Image quality depends on the source sheet layout, zoom level, and export resolution. Small fonts, thin gridlines, and wide tables may become hard to read if the image is compressed too aggressively. For best results, export at a high resolution and use lossless WEBP when text clarity matters.

Compatibility is generally good in modern browsers and apps, but some older software may not open WEBP files. If the spreadsheet contains charts, merged cells, or complex formatting, verify the output carefully because the rendered image may not match the original layout exactly.