Numbers
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Use vertical text in Numbers on iPad
Numbers supports vertical text in shapes and text boxes, so you can enter and edit text from top to bottom, such as in Chinese, Japanese, or Korean. Each new line appears to the left of the one before it.
To use vertical text, your spreadsheet must be formatted for Chinese, Japanese, or Korean, or you must have at least one of these languages on your device’s preferred language list. See Create a spreadsheet with the formatting of a different language and Change a spreadsheet’s language and formatting.