There is an option to save ODS spreadsheet as a HTML document. However, in doing so you might loose certain elements of formatting and special functions that cannot be converted to HTML format.
Convert OpenDocument spreadsheet to HyperText Markup Language web page.
We have found 2 software records in our database eligible for .ods to .html file format conversion.
Microsoft Windows software - convert ods to html on Windows
A popular spreadsheet application distributed with Microsoft Office suite
Convert from ods file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned ods to html. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
On-line services software - convert ods to html on web
Spreadsheet web app from Google