How to manually set the page size in Excel?

Question

excel

Created a table. Its size in width = A1 format, but the height of the table is 1000 mm. In other words, the size of the table is 610*1000. In exele, there is a choice only from the standard formats of the A series, etc. But it doesn't suit me.
I will print on a wide-format plotter, with standard printing there is an indent between the 1st and 2nd page. Which is not acceptable to me.
Therefore, the question is: How to set your page size in an Excel table?

Answer 1

1. And if you try to overtake through a virtual printer in pdf on A1 and print already from it?
2. You can add rows/columns that complete the table up to A1.