But the list is not in the Find and Replace window and the text/document view is a mess of text. In Excel there are columns with headers and so on so it's much easier to see what string it found and what attribute it belongs to. I guess I can find them in Excel and then do the replace in NotePad++.
That "mess of text" is just what a CSV file looks like! It is simply a records (rows) of data, each field (column) separated by a comma.
It isn't anything "NotePad++" is doing, it is what a CSV file is, by its very definition.
Personally, I rarely (if ever) use Excel to view/open CSV files. If you really want to see what is contained in a CSV file, Excel is a horrible tool to do so (as matter as fact, one of the first things I do when I get a new computer is change the Windows default program for opening CSV file from Excel to a text editor like NotePad or NotePad++).
The reason why it looks so nice in Excel is because when you open it, it converts it to Excel format, and Excel may perform some of its own conversions on the data.
These include dropping text qualifiers, leading zeroes, converting anything that looks like a number to a number, and changing date formats.
Before you go through all the trouble though, I would first test it out to see if it really presents an issue if Excel make slight formatting changes to the file.
If it doesn't cause any issues, then there is probably no reason to jump through a bunch of hoops.
Another option would be to create some advanced VBA code that use something like ADO or DAO recordsets to loop through the CSV file, and make the edits it needs without ever actually opening the file in Excel. That involves a little more advanced VBA coding (I haven't used this method myself in about 10 years).
Old last trick I have seen some people do is to use VBA to change the file extension from "CSV" to "TXT" and open it as a Fixed Width (Space Delimited) or Tab-Delimited File.
Then it will return everything for each row into column A, unaltered. So Excel won't do any unwanted formatting changes.
You can do all your Find/Replace steps, save the file as the TXT, close it, and rename it as CSV.
Just some ideas to kick around.
Hope you find one that works for you.