I want to make firstname and lastname format name in one of column of csv file . Rows having different length

Question

given column details as:

José Ignacio Montano Moya

Robert Adam

Michael Vormittag

Akshay Mittal

Jürgen Bohn

Pedro X.

MTIA Melchor Aranda

Chandra Keerthy

Guy Van Houtte

Juan Carlos Rodriguez V.

Juan Carlos Villegas Aguilar

John Martin

Dan Zalacain

Sarthak Nayak

Toni Elias

Gustavo Adolfo García Padilla

Atif T.

Jeffrey Cheng

Ian Thompson

Martin Bluck

Jorge Alejandro Alva Garcia

Mark Morava

Andrea Bettoni

Christophe Mille

Mark W.

Joshua Stewart

Paul Gaytan

Manoj Nair

Vilasini Prabhu

Abraham A.

Wissam Al Adany

Antonio Armando Rebelo

Françoise Charvet-Quemin

Kathleen Garber

Sushil Anand (He/Him/His)