Select "Text Orientation Icon" in the alignment of the start menu bar, and select "Vertical Text" in the pop-up drop-down menu.
Press the shortcut key CTRL+ 1 to open the Cell Format dialog box, and select Horizontal Alignment Center and Vertical Alignment Center in Text Alignment.
In the font, choose your favorite font, usually Song Ti or Microsoft Yahei, choose bold font, and choose the appropriate font size according to the width of the folder.
Insert a line at the top, plus the company's logo, which is the only document label of each company; Finally, select all cells and add cell borders.