.DOTHTML File Extension
Microsoft Word HTML Document Template
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What is a DOTHTML file?
A DOTHTML file is an HTML version of a .DOT file created with Microsoft Word, a word processing application. It contains HTML source code that can be used to display the document with similar formatting to the original DOT file. DOTHTML files are used for viewing published templates in a web browser.
Microsoft Word no longer supports the DOTHTML format. Instead of saving documents as DOTHTML files, Word supports saving them as .MHTML and .MHT files, which are more widely supported by web browsers and other programs.
To create a webpage version of your template in Word 365, select File → Save As, then choose the "Single File Web Page (*.mht, *.mhtml)" option from the dropdown menu. You can also choose to save your document as an .HTM or .HTML file.
How do I open a DOTHTML file?
Unfortunately, there are no known applications that fully support the DOTHTML format since Microsoft Word dropped support for it.