Convert XLSX to HTML
Export the first XLSX worksheet as a safe HTML table.
Limits before you start: One file at a time, up to 15 MB. Up to 250,000 checked cells per worksheet; output up to 64 MB.
Convert XLSX to HTML
Export the first XLSX worksheet as a safe HTML table.
Spreadsheet conversion runs locally. CSV and TSV export the first worksheet and neutralize formula-like text.
Your file is processed on your device and is not uploaded to our servers.
When to use it
Use XLSX → HTML to move tabular data into a program that accepts HTML. Use a copy and check that the values you need are already saved in the cells.
What changes in the result?
Only the first worksheet is exported. Colors, charts, macros and executable formulas are not retained. The result is a simple downloadable HTML table, not a visual replica of the workbook.
If conversion does not work
Compare a few output rows with the original before using the data. Encrypted files, incompatible structures or oversized workbooks may be rejected. A low-memory phone may need a smaller file.
How to use this converter
- Choose a supported file or drop it into the converter.
- Review the file and start the conversion.
- Download the new file when it is ready.
Local processing
The file stays on your device and is not uploaded to ZivelaConv for this conversion.
The accepted formats and size limit appear in the converter. Browser support and available memory can lower the practical limit on some phones.