I see. Thanks.

Never mind. I found the setting I needed.

@Megan-Butler Also, despite the fact that Plugin Manager is no longer installed with Notepad++, it can still be downloaded here:
https://github.com/bruderstein/nppPluginManager/releases

SORRY, IT IS WORKING.
But I had two versions of Notepad++ without realizing it. Removing the old one resolved this issue.

You need to enable that your session is retained during instances. However you will always need to save your files to disk for this to work.

@Daniel-Mayr
While you wait, you can use the Language->Define your language… dialog to create your own syntax highlighting.

The simple solution is to open the files in the backup folder with Notepad++, possibly doing a Save As or Rename to put them in a different location after opening.

Ideally, if you had also backed up the session.xml file in AppData\Roaming\Notepad++, you could theoretically restore that file also and have it restore your session. However, it’s very finicky, and if any small detail has changed (path, for example) for any file, it will simply not open that file in the session. So the more reliable solution is the simple one above.

@Matthew-Hinkle

Not natively, but you could give the LineFilter2 plugin a try. It has options to show lines before and after matches:

Not sure if this is a downside for you or not, but it puts the results in a new editor tab window…

If this (or ANY posting on the Notepad++ Community site) is useful, don’t reply with a “thanks”, simply up-vote ( click the ^ in the ^ 0 v area on the right ).

@abolfazl-yaasi Thanks so much for posting a screen shot! That really helped to tell what was happening. You need to have the Regular expression selected at the bottom left of the dialog, instead of Extended.

It’s just wonderful, thanks for the detailed response. Thank you very much!