Remove Wildcard Pattern

Hi,

I'm sorry that I don't know regular expressions but we have hundreds of files all named in a similar way to the following. 'code' 'space' 'hypen' 'space' 'description of product'.jpg

e.g:
12345ABC - Large Red Shirt.jpg

I need them all to just be 'code'.jpg
e.g.
12345ABC.jpg

How to I remove everything between (and including) the first space to the end of the product description please?

Many thanks in advance.
You don't need a regular expression for this.

Simply use....

Remove pattern: " *"

ie space + asterisk
Reply to #2:

Thank you very much. I will try this!