I have 25+ years' experience in working with MS Excel and have produced many spreadsheets in the past for processes such as Engineering Schedules, Equipment and Inventory Schedules, Estimating Sheets, Sales/Leads Schedules etc. These have typically combined complex formulae to simplify the information displayed as well as professional looking, simple and clean layouts and formatting to make them useful for the end user. To best tailor the spreadsheets to the customer's needs, I can issue a simple PDF version of what has been requested to show the layout proposed for a small initial fee. Once the go-ahead is given for the next stage then the full version can be produced for the main fee, with ongoing improvements/enhancements made for smaller additional fees per change. I can also reverse-produce excel spreadsheets from PDF and customer's sketches.