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First, we turn on the ppt； on our computer;

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Then we click on the file in the upper left corner;

after 3/7

we click the option;

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Then we click on the language;

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we click the drop-down arrow below the screen prompt language;

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The interface pops up, and we click English;

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Finally, we click OK, so that we are set up and the prompt language will become English.