Below is the structured text using Markdown syntax:
You can still open and view presentations using PowerPoint for the web or PowerPoint on your mobile device if you don’t have PowerPoint installed on your computer.
You can view and edit a presentation in a web browser for free if you have a Microsoft account (hotmail.com, outlook.com, live.com, or msn.com) or a Microsoft 365 work or school account.
To open the file, use PowerPoint for the Web after saving it to OneDrive or Dropbox.
You can make a free Microsoft account if you don’t already have one.
You can access presentations on your tablet or smartphone using the free mobile versions of PowerPoint.
Use Google Play to download PowerPoint.
Download PowerPoint using iTunes.
One simple method to open and edit Microsoft PowerPoint files quickly and easily at no cost is to use Office Editing for Docs, Sheets, and Slides.
An online, cloud-based substitute for Microsoft PowerPoint is Google Slides.
An open-source, totally free program called LibreOffice Impress serves as a substitute for the Microsoft Office suite.
Another free and open-source option to Microsoft PowerPoint is Apache OpenOffice Impress.
Assume Using Online PowerPoint Viewer, you can view your files online by uploading them to the internet.
Using the online web service Online Document Viewer, you can upload and view documents, including PPT and PPTX files.
You can open and even edit your PPT and PPTX files using a wide range of different methods without having to purchase the Microsoft Office suite.
Now let’s see if PowerPoint can be used without Microsoft Office.
You can create presentations directly within your browser using PowerPoint for the Web.
Nothing needs to be installed, and you don’t require any additional software.
Check out Office.com.
Select PowerPoint.
Open an already-existing file, start with a template, or create a brand-new, blank presentation.
PowerPoint automatically saves a new, blank presentation you start with with a default name like Presentation 1 to OneDrive.
The capabilities of PowerPoint for the Web are numerous.
Now let’s explore the applications that can open PPTX files.
A Microsoft PowerPoint presentation is stored as a PPTX file.
Use Google Slides or PowerPoint to edit it online for free.
Use the same programs to convert to PDF, ODP, and other formats, or utilize Zamzar.com.
Without a copy of PowerPoint, you can use the free WPS Office Presentation or OpenOffice Impress to open and edit PPTX files.
Additionally, some free presentation creators allow you to edit PPTX files online without installing any software.
You can quickly convert your presentation to a different file format if you’re using one of the full-support PPTX programs listed above. Simply open the file in the program and save it again in a different format.
Zamzar is a program we particularly like for converting PPTX files. It can be saved in a variety of image formats, including JPG, PNG, TIFF, and GIF, as well as PDF, ODP, and PPT.