I'm in Excel 2003. I have a sheet with the following data:
ColumnA Column B
Reports ID
Report1 53124
Report1 52145
Report3 58216
Report2 58691

I have been trying to create a formula that will give me all of the ID
numbers associated with Report1, Report2, Report3...and separate each ID with
a Comma. For example the Results will look like this:

Column C
Report1 53124, 52145

Is there something I can use to achieve this results?

Thanks,