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I have thousands of mp3 files bought from various places. &nbsp;My folder file list looks something like this: 
 
Mental Project - 6000 (Roman Gertz Shocked Remix).mp3 
714225_-_Looks_Good_Original_Mix_456.mp3 
01_-_Why_Not_(klang123ltd).mp3 
12963_Throw_Your_Hands_Original_Mix.mp3 
 
I have a batch rename EXE but it requires a RegExp to perform the renaming. &nbsp;Therefore, can anyone provide an expression that does the following: 
 
Replace _-_ with a single space character 
Replace _ with a single space character 
Replace - with a single space character 
Remove any numeric prefix on the filename (but ignore numbers within the file name) 
 
e.g. 714225_-_Looks_Good_Original_Mix_456.mp3 would become 
Looks Good Original Mix 456.mp3
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I have thousands of mp3 files bought from various places.  My folder file list looks something like this:

Mental Project - 6000 (Roman Gertz Shocked Remix).mp3
714225_-_Looks_Good_Original_Mix_456.mp3
01_-_Why_Not_(klang123ltd).mp3
12963_Throw_Your_Hands_Original_Mix.mp3

I have a batch rename EXE but it requires a RegExp to perform the renaming.  Therefore, can anyone provide an expression that does the following:

Replace _-_ with a single space character
Replace _ with a single space character
Replace - with a single space character
Remove any numeric prefix on the filename (but ignore numbers within the file name)

e.g. 714225_-_Looks_Good_Original_Mix_456.mp3 would become
Looks Good Original Mix 456.mp3

Build RegExp to change filenames

A regular expression ("regex") is a sequence of characters that define a search pattern, mainly for use in pattern matching with strings, or string matching, i.e. "find and replace"-like operations. Regular expression processors are found in several search engines, search and replace dialogs of several word processors and text editors, and in the command lines of text processing utilities, such as sed and AWK. Many programming languages provide regular expression capabilities, some built-in, for example Perl, JavaScript, Ruby, AWK, and Tcl, and others via a standard library, for example .NET languages, Java, Python and C++ (since C++11). Most other languages offer regular expressions via a library.