Using action to replace

I tried using an action to replace a string in artist field. It says it is formatted tags in 242 out of 442 files. I see the change, but there are only 6 files.

Why does it says it is formatted so many files?

Is it possible to filter to show only files that are modified by the tool?

Is there any search that shows how many files have given string? Appreciate your help.

I do not know why the message shows such values.
But yes, there is a filter. And if you enter the same expression that you use for replacing then you will see the files that would match the replace criteria.
There is no filter like "Show modified". you would have to enter the target pattern to see the files.

Thank you very much for the reply. I found the filter and playing with it. I am new to the tool, but the tool is very powerful.