Soap API filter development for excel csv output file for uploads to auction marketplace

Hello, I would like to develop a filter that converts and dispatches upload files to an auction site for one month. It is a site that is like eBay. The API uses soap and my export files is csv. The format and attributes of the csv file is used by delcampe in their own listing software. The filter/code should convert that file from csv to be sent to delcampe. It can be either built in excel (VBA) or if another web language is used, I can host a php script to process the filter. The full documentation of the code can be found here: [login to view URL] The CSV file is attached to this sheet.