Open ppt software, and then open and enter the document that needs to quickly convert the text content in the text box from horizontal to vertical.
After entering the document, select the text box that needs to change the text direction, select it in the menu bar at the top of the software, and click the "Start" menu.
After opening the drop-down option in the start menu, find the paragraph option group, and then continue to find the text direction option in this option group.
Click the "Text Direction" option menu to open its drop-down options, select and click the "Vertical" option from the open drop-down options.
After clicking "Vertical Arrangement", you can see that the original text boxes in ppt are horizontally arranged, and now they become text boxes with vertically arranged text contents.
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