https://multiplefilemaker.com/
find and replace in multiple files
find and replace in multiple files

How do I find and replace multiple files in Windows? How do I find and replace a filename in a folder?

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DB Maker
Extract data from text, html, xml and other files.
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Miltiple HTML file generator
Using just one csv-file with a database, you can create thousands of HTML pages.
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Multiple File Search and Replace
Edit, find and replace text in multiple files.
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Website Extractor
The program can download up to 100 files at a time
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find and replace in multiple files
How do I find and replace multiple files in Windows?

The Find and Replace tool has options to simply search for strings inside files, ... also easy to use even for replacing several phrases across multiple text files.