Moving data in file names

[pandreasen]

How can I move data within file names? For example, I have many files with the dates of the files or in this case, dates of the documents publications, right at the first of the filename. I want to remove the dates, and reinsert them at the last of the filenames.
Example: "1982_NEC Semiconductor Guide.pdf". I want to change that name to "NEC Semiconductor Guide 1982", changing the underscores to spaces at the same time for readability. (or not)
Any help would be appreciated. I tried reading the manual, but my 78 year old eyes started crossing about page 20!
a PM would be great, as I forget to log in and check. (eyes aren't all that fail at this age!) LOL

[Admin]

Use RegEx (1)
Enable the Simple flag.

Then :

Match: %1_%2
Replace: %2 %1

Try it out!