On a bar appear the contents of a txt file

"❄️Suresh sureshnawras-/[email protected] [power-pro]" <[email protected]> Sun, 17 Feb 2019 00:21:29 +0530
Newsgroups gmane.comp.windows.power-pro
Message-ID <[email protected]>
On a bar, how to make appear contents of a txt file?
What script code should be on the Name field of that bar?

Thanks for any replies.