I'm importing an excel list with many columns, but one of the columns is unable to be used in a lookup table. The column contains the multiple owners for the main object and sharepoint can't read it for some reason. Every other column can be used for a lookup but this one. I want to use this column to show who owns the object being reference in a documentation list. Sorry if this is phrased incorrectly, let me know what more info you need.
This isn't an excel issue. Person or group fields can't be retrieved using a lookup. You can get around this by using code, or by making a string copy of the owner field by running a workflow each time the item is changed, and the string can be retrieved using a lookup.