Removing all characters before the first space

I am looking for a method for removing all characters before the first space (including the space. The space character will appear later in the file name so I can't just group it and the number of leading numbers and . characters can vary.

Example:
2.13.5 My Clean File Name.pdf

To:
My Clean File name

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Replace: "[^ ]* "
With: nothing
Occurence: 1st
Use regular expressions

Don't include the quotes in the replace string and note the space at the end.

The regex will match any number of non-space characters followed by a single space from the beginning of the filename.

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