Extract text from PowerPoint presentations (PPTMHTML)
To convert PPTMHTML presentations to another format, you need Microsoft PowerPoint or other Web software.
To convert other file formats to the "MIME HTML Web Archive" file type, you need software like Microsoft PowerPoint or a similar tool.
The .PPTMHTML file format is a legacy web archive created by older versions of Microsoft PowerPoint. It uses the MHTML (MIME Encapsulation of Aggregate HTML Documents) standard to pack presentation slides, text, images, and embedded media into one single text-based file.
The current format has severe disadvantages. It is highly outdated and relies on legacy HTML and VML markup optimized exclusively for old versions of Internet Explorer. Modern web browsers struggle to render these files correctly. The files are heavily bloated and pose potential security risks due to executable scripts hidden within the MIME structure. Editing a .PPTMHTML file requires a paid Microsoft 365 subscription, as standard text editors will just show a messy wall of base64-encoded text instead of visual slides.
You should convert this file to standard formats like PPTX for editing, PDF for universal viewing, or standard HTML to extract the assets. Standard online converters often fail to process it because it is a proprietary, complex Microsoft-specific container that does not follow modern web standards. If our analysis detects supported underlying images or text, viewing or converting the raw assets is possible even without legacy Microsoft software.
Convert.Guru analyzes your PPTMHTML file, detects the exact format, and lets you read the text inside.
If you want to convert PPTMHTML file to HTML, HTM, CSS, JS, PHP, ASP, ASPX, JSP, JSPX, PY, RB or PL, you can use Microsoft PowerPoint or similar software from the "Web presentation MIME archive" category. In the File menu, look for Save As… or Export….
To convert RSS, CSS, CGI, SITEMAP, PL, WEBMANIFEST, JSON, JS, XML, HTML, ICO or HTM files to PPTMHTML, try Microsoft PowerPoint or another comparable tool in the "Web presentation MIME archive" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our PPTMHTML converter.