Excel Sales Data Modeling Guidance

I have a sales-figure data set that I must turn into a well-structured Excel model. My priority right now is organising the raw data into a format that lets me explore it confidently later on. I’m not... (Budget: £10 - £20 GBP, Jobs: Data Analysis, Data Modeling, Data Processing, Data Visualization, Excel, Excel Macros, SPSS Statistics, Statistical Analysis)