Multiselect Dropdown list, multiple ranges|VBA & Macros|Excel Forum|My Online Training Hub

I'm trying to use the multiple selection dropdown list code and am having difficulty modifying.  I'm working on creating a index for files and have a column to identify source, file contents and will be adding some keywords to identify what the information in the file is on, I want to be able to do multiple selection on each column as needed.  I tried modifying the code but it isn't working. 

File is attached.

Index : list of files columnds d,e,f are the selection lists (d may not actually need the multiple selection possibility, but e and f will)

Keywords: the lists for the selection lists being used on Index

Sheet 1:- separating the path from the file name

How do I get the multiple selection working on this.  I tried searching the VBA forum but was getting too many unrelated articles to find anything that helped.

Thanks

Karen