Select single word to left of comma and change its font colour

[Harvi007]

Good Evening All,



I have a question that I hope someone can help me with.

I'd like to perform a find & replace of sorts.

I'd like to find the words directly before commas and change the colour of them in a whole document, e.g.

Original Text:
This is line, number one in word.
This is line number, two in word.
This is line number three in, word.

Desired Result:
This is line, number one in word.
This is line number, two in word.
This is line number three in, word.

I don't mind if the comma also changes colour as it will be removed after.

I've looked around online but couldn't really find anything that would get me started or at least point me in the right direction.

Any help on this would me much appreciated.

Thanks in advance,

Harvi