Proforma Excel Spreadsheet

I am looking to create a proforma Excel spreadsheet which will contain sales figures, with just one single worksheet required. This spreadsheet will need to be updated regularly, and I'm looking for a freelancer to help create it. The spreadsheet needs to be tailored to my data, so experience in creating an Excel spreadsheet is a must. I'm looking for a freelancer who can help create an effective and efficient spreadsheet so that my sales figures can be analysed quickly and effectively.