Spreadsheet analysis software allows easy data management, as has been shown by the WASP (Write a Scientific Paper) sets of papers in these Best Practice Guidelines (BGP) in the previous issues. However, commonly available spreadsheet software, such as Excel, is weaker on the more advanced statistical techniques. Potential alternatives include the creation of custom macros, the utilisation of an Excel add-in, or using a standard, stand-alone, dedicated statistics package. This does not imply that Excel need be abandoned. Indeed, many users prepare their data in Excel and later transfer it into a statistical package for advanced analysis. Results may then potentially be returned into Excel for graphical depiction. Some examples of such advanced statistical techniques are given in this Best Practice Guideline (BPG) collection. The upcoming non-statistics papers in the WASP BPG series should be found equally useful to researchers who are new to paper writing, such as the one included in this particular set which outlines the writing of a research proposal.