Tested: Emailing LibreOffice Writer HTML to Blogger
You can use LibreOffice Writer to create an HTML document and post it to Blogger if you set up publish to Blogger using e-mail.
To use LibreOffice Writer to publish to Blogger over e-mail:
1. In LibreOffice Writer, create your document using standard formatting styles and bullets and lists. Insert images as needed and format text using Bold and Italics.
2. Click File > Send > Document as E-Mail.
3. If you didn't set up an e-mail client, as an alternative, you can save the document as an HTML file or click Send > Create HTML Document. Open the HTML document using a web browser and select all the text/images and paste the content to your e-mail compose page in Outlook.com or Gmail.com.