Develop a general methodology to prepare any type of data analysis provided in one or multiple datasets to be feasible for numerical data analysis, i.e. the final datasets have to be a single relational dataset (table) with structured data.

develop a general methodology to prepare any type of data analysis provided in one or multiple datasets to be feasible for numerical data analysis, i.e. the final datasets have to be a single relational dataset (table) with structured data. Make a draft of the methodology (e.g. Step 1. Identify the format of the data etc).