Drag and Drop a Powerpoint File Into Google Slides
Use this method if your Powerpoint file is located on a local drive.
Open Google Docs. If Slides is not already selected, in the upper-left corner of the application, select the menu (three bar) icon. From the menu, choose Slides. In the upper-right corner of the Recent presentations section, select the file picker (file folder) icon. In the Open a file screen, choose Upload. Open the folder where your Powerpoint file is stored. Drag the Powerpoint file into the Drag a file here section. Alternatively, use the blue file-picker button to find your local document through the operating system’s file manager. The file uploads and then becomes available for opening or editing like any other Slides document. Formatting may change when you convert a PowerPoint file to Google Slides.
Upload a Powerpoint File Into Google Drive
This method will also work for files located on a local drive.
Open Google Drive. In the upper-left corner, select New > File Upload. Navigate to the file you want to upload and select it. You’ll see an uploading message, then the file will show up in your Google Drive file list. Select the file. At the top of the screen, from the menu choose Open with Google Slides. The converted presentation will appear in the Google Slides editing environment and you can work with it as you normally would.
Open a Powerpoint File From Google Slides
Use this method if your Powerpoint file is already located on your Google Drive.
Open Google Docs. If Slides is not already selected, in the upper-left corner of the application, select the menu (three bar) icon. From the menu, choose Slides. Toward the top of the screen, select the down-arrow and choose a class of document to view. Select your Powerpoint file. You’ll see a dialog box asking if you want to open the file in View Only mode, or Edit as Google Slides. Choose Edit as Google Slides. You can now work with the file as you normally would.