Open the word document for which you want to detect spelling errors. Click Review in the status bar, and then click Text Proofreading. In the pop-up window, click "Start Proofreading". Check that there are no scientific fields at present, and then click Next. If there is a typo, the system will automatically detect several mistakes, and then click "Modify Document Now". On the right side of the article, the location of the error will be displayed. Click to modify it. After the revision, click "Exit Proofreading" to complete the proofreading of the whole article.