How to Open Multiple CSV Files in One Excel Spreadsheet. The CSV file extension appears on text documents that contain comma-separated values. Like spreadsheet data, each line in a CSV file ...

Create or open your file. If this is a new file you've just created and are saving it for the first time, proceed to Step 2. If you're re-saving an existing Excel document, navigate to its ...

You can make Excel always open old spreadsheets in Protected View. Enable or disable Protected View using in-built setting, Group Policy, Registry.

Click Ok, and this would open the dialog box. Select the PDF file you want to insert in Excel and click ‘Open’. It will open the PDF file by default, and you need to close it.

Readers will note that you can accomplish the same thing manually by opening another Excel instance, and then using File -> Open to launch the spreadsheet, but this registry hack makes the whole ...