PowerPoint Open XML Presentation
If you need to edit the PPTX file, one of the safest methods is to download and install the software dedicated to working with PPTX files. Of course, there are probably PPTX Online Editors available, but none of them will be able to provide such a wide range of available options as dedicated software.
Remember, that not all of the mentioned programs will allow you to edit the PPTX file. Additional information about the PPTX file extension can be found here.
Definitely the best solution. Try to open the PPTX file with one of the programs and it will see if you can edit the PPTX file. The most proven method is to download the installer from the developer's website. You can find direct links to the creators' websites on the subpages of each application. Below you will find some examples of software programs that support the PPTX file (so it is very possible that they can edit files in PPTX format).
And here is the full list of programs supporting the PPTX file
Remember that many file types have a text format and you can preview their contents by opening them, for example, with Windows Notepad. However, such manual editing of the PPTX file or any other file may result in damage to the file. After saving the changes, it may not be possible to reopen the PPTX file. By far the safest way is to use file editing programs that works with the PPTX extension.
It can definitely be said that any of the list of programs that support the PPTX extension should be able to edit the PPTX file. However, if for some reason you did not find this option, you can try using tools prepared by external websites. Verified websites with the option to edit the file in the PPTX format below.
Free Online File Edit Service
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