Syntax to extract complete value before last opening parenthesis and after last comma

[pradnyaraibagkar]

Dynamic syntax to extract complete value before last opening parenthesis and after last comma.

Example : from the below text, output has to be System User,

Ekrem Rrahni (M379753), Marie Dietrich (M022543), Suprita Mg (A566060), System User (SYSTEM)

[Bren_Spill]

@pradnyaraibagkar - try this: .*\s(\w+\s\w+\s\(\w+\))

[pradnyaraibagkar]

Thanks Bren. The below Regex is working for only few inputs.

Can you help with the attached file.

[CoG]

Here is an alternative that takes into account all provided cases: 

.*,\s?(.*?$)|(^.*$)

The Regex checks for the last occurrence of a comma and captures all remaining text, or, if no comma exists, it just takes everything.

Hope this helps and Happy Solving!