Which MIME types are related to file extension ".ppsm"?
The .ppsm file extension is associated with 1 MIME types:
application/vnd.ms-powerpoint.slideshow.macroenabled.12.
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
About .ppsm Files
PPSM files are a macro-enabled slideshow format from Microsoft PowerPoint. They are built on the Office Open XML standard and can run animations and automated commands via embedded macros.
These files open directly in slideshow mode and are used to present automated, interactive content. Macros may control transitions, animations, or custom actions during the presentation.
Key details include:
- Main Use: Delivering slide shows with built-in automation.
- Software Compatibility: Best opened with Microsoft PowerPoint. Some other applications like LibreOffice Impress may import them, but macro functionality might vary.
- MIME Type: application/vnd.ms-powerpoint.slideshow.macroenabled.12
Relationship between file extension and MIME type
A file extension is a suffix at the end of a filename that indicates what type of file it is. File extensions help both users and operating systems identify what application should be used to open the file.
File extensions are typically separated from the filename by a period (dot) and consist of 2-4 characters, though they can be longer. For example, in the filename "document.pdf", ".pdf" is the file extension.
File extensions are closely related to MIME types, as they both serve to identify the format of a file. However, while MIME types are used primarily by web browsers and servers, file extensions are used by operating systems and applications.
Associated MIME types
application/vnd.ms-powerpoint.slideshow.macroenabled.12
FAQs
What is a PPSM file?
A PPSM file is a Microsoft PowerPoint Macro-Enabled Slide Show. Unlike standard presentations, this file type is designed to open directly in full-screen slideshow mode and contains embedded macros (VBA scripts) to automate tasks or add interactivity.
How do I open a PPSM file?
You can open .ppsm files using Microsoft PowerPoint on Windows or macOS. Free alternatives like LibreOffice Impress or WPS Office can also display the slides, though complex macros may not function correctly in non-Microsoft software.
How can I edit a PPSM file instead of playing the slideshow?
To edit the file, do not double-click it. Instead, launch PowerPoint first, go to File > Open, and select the .ppsm file. On Windows, you can often right-click the file and select Edit from the context menu to bypass the automatic slideshow mode.
Are PPSM files safe to open?
Because .ppsm files contain macros, they can potentially harbor malicious code or viruses. You should only enable macros if you trust the source of the file; PowerPoint usually displays a security warning asking if you want to "Enable Content" before running any scripts.
What is the difference between PPSM and PPTM files?
Both formats support macros, but their default behavior differs. A .pptm file opens in edit mode (showing the ribbon and slide sorter), whereas a .ppsm file opens immediately in presentation mode for viewing.
Can I convert a PPSM file to a standard PPTX?
Yes, open the file in PowerPoint's edit mode and choose File > Save As. Select PowerPoint Presentation (*.pptx) from the dropdown menu; however, be aware that saving as .pptx will remove all macros from the file.
Why won't the macros run on my mobile device?
While the Microsoft PowerPoint mobile app (iOS/Android) can open and display .ppsm slides, it generally does not support running Visual Basic for Applications (VBA) macros. The interactive elements relying on code will likely be disabled on tablets and phones.
What is the MIME type for PPSM files?
The correct MIME type is application/vnd.ms-powerpoint.slideshow.macroenabled.12. This configuration helps web servers and email clients identify the file as a macro-enabled slideshow; more details are available at mime-type.com.
General FAQ
What is a MIME type?
A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.
MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.
MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.
How do I find the MIME type for a file?
You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.
Why can one extension have multiple MIME types?
Different programs and historical usage may assign various MIME identifiers to the same file format. Listing them together helps maintain compatibility across tools.