Which lines a useBorders layer draws.
direct
normal
Either way a normal line is drawn only where no cell border owns the edge.
Which lines a useBorders layer draws.
direct: the borders cells carry, plus UseBorderOptions.normalRows / UseBorderOptions.normalColumns as the Normal style's border — a border on every cell, blank ones included, so it draws above the fills like any other border.normal: only the normal lines, below the cell fills so a fill hides them — the gridlines.Either way a normal line is drawn only where no cell border owns the edge.