🚀 go-pugleaf

I am looking for a script for the following...

I have over 18,000 lines of text-not in a table but set up in columns with text flow from column to column. There are tabs between each item and a return at the end of each line of text. Everytime the word Series appears, I want the text line to change to a different character style--only the line that starts with Series. I want the rest of the text (the line above and below it) to remain in its current type style. Besides setting up the two character styles, is there a script that can change this for me or is a manual process of selecting the line and "clicking" the style I want my only choice.

A sample of one column is as follows:

23 M897 1/2 End Mill	49.00	97332<return>
Series M897 - Metric		<return>
23	M897 6,0 End Mill	25.70	31277<return>
23	M897 8,0 End Mill	33.45	31278<return>
23	M897 10,0 End Mill	44.85	31279<return>
Series M898 - Inch<return>		
23	M898 1/4 End Mill	31.25	31163<return>
23	M898 3/8 End Mill	48.65	90304<return>
23	M898 1/2 End Mill	70.75	90305<return>
23	M898 5/8 End Mill	100.85	90160<return>

Any thoughts would be appreciated.

Elaine