I am using Calc in LibreOffice version 6.4.2.2. I can find no way to get a printer to print a spreadsheet in either landscape or portrait. The number of columns may require sideways printing. Ia there any way to get this done or is this a missing feature that needs to be added. The help material does not seem to match what I have.
Have you looked at the Format menu? In the drop down about half way is the Page option. In the dialog that opens look for the page tab. You can find the page size and landscape/portrait option there. Plus a few other page settings as well
After further exploration, I found that setting page orientation is not assigned to printer setup (Ctrl P) , but rather to page setup on the menu bar and is slightly different for Calc from what it is for Writer.
To set page orientation to Landscape or Portrait
In Calc: On the menu bar go to Format, then Page. You will see a choice between landscape and portrait on the upper left side under Paper Format
In Writer: On the menu bar go to Format, then Page Style. You will see a choice between landscape and portrait on the upper left side under Paper Format