Install the app using the locally downloaded .deb file and dpkg Start the application.

Sure, I can answer your question. Based on the sentence you provided, it seems like you want to know how to install an application using a locally downloaded .deb file and dpkg, and then start the application. Here are the steps:

1. Open a terminal window and navigate to the directory where the .deb file is located.
2. Use the dpkg command to install the application. For example, if the file name is "example.deb", the command would be:

   sudo dpkg -i example.deb

Note that you will need to enter your password when prompted.

3. Once the installation is complete, you can start the application by searching for it in the application launcher, or by running the command associated with it in the terminal. The command to start the application can differ depending on the application you installed.

I hope this helps! Let me know if you have any further questions.