How To Show Hidden files On Mac

Some files o your Mac are hidden to keep them away from the possibility of being altered.
These files don't need to be altered because they might affect Mac OS, but in case you want to see them and access them, you can.

Show Hidden Files On Mac:
Go to Finder
Open the Mackintosh HD folder
Press Command+Shift+Dot

[lacyanderson]

OMG. This changed my life! I had so many hidden files that were showing up as "ghost" files. It made my files appear so disorganized and out of order. This simple Command-shift-period changed my entire filing system organization! Thank you

[Raheemjones]

What if you have a folder that had files in it and one day you click the folder and it is empty how do you get those files back