Using Visual Basic for Applications you can insert Excel charts into a new PowerPoint presentation programmatically rather than using the cumbersome copy-and-paste method.

How to Copy From the Internet and Paste Into Excel. Microsoft Excel accepts data input from your keyboard, through file import and by pasting the contents of your computer clipboard into a worksheet.

Use these methods to import charts from Excel to PPT. You can copy-paste and link data from Excel to PowerPoint using these instructions.