How to restore a hidden file in Time Machine - can't find data file?
Open Applescript Editor, in Applications > Utilities then copy/paste this to a new script...

set newHiddenVisiblesState to "YES"
try
    set oldHiddenVisiblesState to do shell script "defaults read com.apple.finder AppleShowAllFiles"
    if oldHiddenVisiblesState is in {"1", "YES"} then
        set newHiddenVisiblesState to "NO"
    end if
end try
do shell script "defaults write com.apple.finder AppleShowAllFiles " &amp; newHiddenVisiblesState


tell application "Finder"
    set theWindows to every Finder window
    repeat with i from 1 to number of items in theWindows
        set this_item to item i of theWindows
        set theView to current view of this_item
        if theView is list view then
            set current view of this_item to icon view
        else
            set current view of this_item to list view

        end if
        set current view of this_item to theView
    end repeat
end tell


Then Save as an application, which you can then just double-click to toggle showing/hiding invisible files.

You don't need to kill the Finder for this toggle, a refresh is sufficient - &amp; faster.