Michael L. answered 07/08/19
Exceptional Excel Expert & Financial Modeling Tutor
It is not apparent what sort of rule-driven run book automation (RBA) you are envisioning or what you are specifically referring to by "splitting" a column of data. If you have grouped data that needs to be divided into multiple columns a visual basic macro could deftly perform this task. The macro would use the "Selection.Columns.Ungroup" command (and/ or the "EntireColumn.Insert" command depending on the task you are trying to accomplish). This macro could be set to run either at the click of a button or when some other user-specified event occurs.
If you'd like the code for creating a macro to split columns then please reply to this post and include an explanation of what you mean by splitting columns of data and what, in your mind, constitutes RPA automation.