1. Open the word document and find a large blank in the middle of the document, which cannot be deleted. This is because the paragraph spacing is set.

2. Select two paragraphs above and below a large blank area in the middle of the document.

3. Click the right mouse button and click "Paragraph".

4. Adjust the spacing before and after the paragraph to 0, and then click OK.

5. A large blank in the middle of the 5.word document was deleted.