Question: in the case that your dm file doesn't open, it is highly likely that you do not have the correct software application installed on your pc to view or edit dm file extensions.
Answer: --> In the case that your DM file doesn't open, it is highly likely that you do not have the correct software application installed on your PC to view or edit DM file extensions.

Question: the infrastructure should not be built first in anticipation of development.
Answer: --> The infrastructure should not be built first in anticipation of development.

Question: simultaneously tap alt+f, select settings, and navigate to on startup.
Answer:
--> Simultaneously tap Alt+F, select Settings, and navigate to On Startup.