Our Support team is ready to present you a new tutorial that will show you how to use the Find in files feature in Notepad++.
Please check the following tutorial on How to download and install Notepad++ editor.
Once you installed Notepad++ software, open the Notepad++.
Press Ctrl+F to open the Find and replace tool.
Open Find in files tab. Fill in the Find what: field and select the directory for the search (folder with your site files, template package, theme folder, etc.)
Click on Find all button.
You will see the files and lines with the text you were looking for.
Feel free to check the detailed video tutorial below: