I am trying to save my Excel spreadsheet as a pdf, and the resulting file is blank.

[Splash_of_Red]

Using the export function or the safe as function is saving a blank file. 

[#2]

If you try to print-preview the file, does it appear blank as well by any chance? If yes you probably have to change the print area.

[#3]

@Jan Karel Pieterse thank you soooooo much!!! So obvious, yet not something I even thought about. And yes, the print area was set to one blank cell.

[#4]

@Splash_of_Red Funny enough, I had this same thing happen to me every week when converting my week-ending report on Microsoft Word into a PDF file. What worked for me was to go to Page Layout, highlight the area I wanted to print (All cells and content), then select "Set Print Area". Prior to that, I was paying for Adobe just to be able to remove blank pages as needed - but alas, I can cancel my unnecessary subscription. Hope it helps! :)