2 Using the export filters
2.5 Using Calc2xhtml
To export a Calc document to XHTML, choose XHTML 1.0 strict or XHTML 1.1 in the export dialog.
After you have typed in a file name, an options dialog will open. To get help, select an item and press F1 or press the help button. Alternatively you can enable extended tips with Shift-F1.
Click Export to initiate the export or Cancel to close the dialog without exporting the document.