Build the structure before adding content
A landscape sheet is convenient for a sequence, a comparison, or a sketch that spreads horizontally. The starting twelve-by-eight layout is a framework you can adapt instead of a finished worksheet with fixed headings.
Consider what each division represents before increasing the density. A grid meant for quick marks can be much finer than one intended for sketches or several words in every cell.
Keep rows, columns, and aspect ratio distinct
Adding columns narrows the cells; adding rows lowers their height. Selecting a wider canvas changes both relationships, so equal row and column counts are not required for every useful layout.
The PNG can be inserted into a slide or document and resized as a whole. Preserve its aspect ratio during resizing to avoid stretching the cells. Text entry and individual cell resizing happen outside this tool.