How to rename files with spaces between each character?

Is there a way to insert spaces between each letter and number.

For example:

INTRODUCTION => I N T R O D U C T I O N

CHAPTER1 => C H A P T E R 1

You can use a regular expression with a "negative lookahead" to replace every character that isn't at the end of the filename with itself plus a space.

Replace method...
Text to be replaced: "(.(?!$))"
Replace with: "\1 "
Occurence: All
Use regular expressions

Reply to #2: Works perfectly. Thank you.