Hello 19chris30,
Welcome to the HP Forums. I hope you enjoy your experience!
I understand you are unable to print a certain spread sheet in Landscape mode. I will do my best to assist you, but first I require the following information:
1. The printer model number. If you need assistance locating this information, please reference this document to determine your printer model number.
2. The computer's operating system. If you require assistance locating this information, please reference this website to determine your Windows operating system, if you are using Windows. If you possess a Mac, please reference this website to determine your Mac operating system.
3. Can you try printing this on a second program to see if you are able to print it.
As soon as you respond, I can assist you. Thank you for choosing the HP Forums. Have a great day!
Mario