The 8.5 x 17 paper size is commonly referred to as "legal" size paper. It is often used for printing legal documents, contracts, and other legal-sized documents.

To print to a printer that accepts legal-sized paper in Excel, you may need to adjust your printer settings. Here's how to do it:

1. Click on the "File" tab in Excel.
2. Click on "Print" in the left-hand menu.
3. In the "Settings" section, click on the drop-down menu next to "Paper Size" and select "More Paper Sizes."
4. In the "Page Setup" dialog box, select "Legal" from the drop-down menu under "Paper Size."
5. Click "OK" to save your changes.
6. Click "Print" to print your document on legal-sized paper.

If you are still having trouble printing on legal-sized paper, you may need to check your printer's manual or contact the manufacturer for assistance.