Question : excel vba lookup function with multiple data elements in a single cell

looking for someone to help me write a quick and dirty function  to look at ID numbers in a cell and to return a corresponding name (or names) associated with the ID number(s) via a lookup pointing to a separate array

IDs would be numeric in this format, seperated by "; " where there are multiples - eg
100  (for only one ID in a cell)
100; 101; 108 (for 3 IDs in a cell)
etc.
see attached file for more detail
thanks in advance

Answer : excel vba lookup function with multiple data elements in a single cell

Here's the sample file ...

sample.xls (32 KB) (File Type Details) 

vba lookup