Change data from vertical format to horizontal format

I am trying to consolidate information in a database that is not very user friendly.

Column A contains a list if invoice numbers. Column B is the name of the Vendor. Column C is the Sales Rep ID Number.

The problem I am having is each invoice is listed in one or more line items (which are dependent on the number of reps on the invoice in question). I am trying to create a separate sheet that will list each invoice only once but list every sales rep assigned to the invoice in separate columns.

For example, invoice A might be listed 5 in five line items with 5 different rep numbers

Invoice ID………………Rep Number
A……………………………Rep_474
A……………………………Rep_66
A……………………………Rep_9
A……………………………Rep_1
A……………………………Rep_5668

I would like the data to be listed as follows

Invoice ID………………Rep Number1…..Rep Number2…..Rep Number3…..Rep Number4…..Rep Number5
A……………………………Rep_474………….Rep_66……………Rep_9……………..Rep_1…………….Rep_5668



Note: In some cases, a rep may be listed more than once on the same invoice, such as

Invoice ID………………Rep Number
A……………………………Rep_474
A……………………………Rep_474
A……………………………Rep_9
A……………………………Rep_9
A……………………………Rep_9

In this case, the output would be as follows:

Invoice ID………………Rep Number1…..Rep Number2
A……………………………Rep_474………….Rep_9


I have attached a small sample of raw data and desired output. Thanks in advance for any comments.