XLSX .xlsx
An Office Open XML workbook. Table previews show stored values, without recalculating formulas.
XLSX file format guideXLSX to HTML converter
Convert XLSX (.xlsx) to HTML for free. Choose files, review the available settings and download your results. No account needed.
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HTML .html
Web document markup. User files are shown as source text and never executed.
HTML file format guideHow to convert XLSX to HTML
- Select XLSX files from your device or drag them into the converter.
- Check the HTML output. Open conversion settings if you want to make adjustments.
- Convert, compare the original and result, then download your files.
Quality, compatibility and file limits
Choose a sheet for CSV, TSV, JSON, HTML, DBF, DIF, SYLK, or WK1 output. Workbook formats export stored cell values. Formulas are not recalculated; macros, charts, and original styling are not preserved.
Processing uses your device when possible and our servers when required. Browser files are limited to 256 MB each; server conversions to 64 MB; browser spreadsheets to 32 MB. Previews show supported content and do not guarantee identical rendering in every application.