Excel 2019中的智能工具箱位于“文件”选项卡下，要打开它，请按照以下步骤操作：，1. 打开Excel 2019应用程序。，2. 点击左上角的“文件”按钮。，3. 在下拉菜单中，选择“选项”。，4. 在弹出的“Excel选项”对话框中，点击左侧栏中的“自定义功能区”。，5. 在右侧区域中，找到并勾选“智能工具箱”复选框。，6. 点击“确定”以保存更改。，完成上述步骤后，智能工具箱将会出现在Excel的工具栏中，您可以直接使用其中的功能来提高工作效率。

1. First and foremost, it is essential to understand that effective communication involves not only conveying information but also building relationships and fostering mutual understanding.
2. To achieve this, one should employ a variety of sentence structures that cater to different audiences and contexts, thereby enhancing clarity and engagement.
3. For instance, the use of simple sentences can be beneficial when aiming for brevity and directness, while compound or complex sentences may be more suitable for providing detailed explanations or illustrating nuanced ideas.
4. Additionally, incorporating transitional phrases and words can significantly improve the flow and coherence of your writing, making it easier for readers to follow along.
5. Lastly, always remember to revise and edit your work carefully, ensuring that each sentence contributes meaningfully to the overall message and tone.

By adopting these strategies, you will be able to craft more dynamic and impactful written content that resonates with your intended audience.