If you have a large amount of content to upload to the Knowledge Base, you can upload it using an Excel template.
In your Knowledge Base, select the Upload Content button from the top-right corner.
When you click on the button, you'll see some instructions and you can download the blank template.
Use the "Instructions" page of the Excel workbook to populate data in the "Knowledge" page of the spreadsheet. Next, save the Excel workbook, click the "Upload Knowledge" button and point the application at your saved spreadsheet.
The only columns that are required are A, B and C. The other are optional.