3 Ways To Open A PPTX File On PC Or Mac - WikiHow Tech

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1 Open your internet browser. You can use any browser like Chrome, Safari, Firefox or Opera.
2 Go to https://office.live.com/start/PowerPoint.aspx in your browser. Type or paste this link into the address bar, and press ↵ Enter or ⏎ Return on your keyboard.
- If you're prompted, use your Microsoft account to sign in.
3 Click Upload a Presentation. You can find this button next to an upward arrow icon in the upper-right corner. It will open the file navigator in a pop-up window.
4 Select your PPTX file. Find your PPTX presentation file in the file navigator, and click on the file's name or icon.
5 Click Open. This button is in the lower-right corner of the file navigator window. It upload your PPTX file, and open the presentation in your browser. Advertisement