Dealing with data

Typically, when you deal with data, this is the path you go through: you fetch it, you clean and manipulate it, and then you inspect it, and present results as values, spreadsheets, graphs, and so on. I want you to be in charge of all three steps of the process without having any external dependency on a data provider, so we're going to do the following:

1. We're going to create the data, simulating the fact that it comes in a format that is not perfect or ready to be worked on
2. We're going to clean it and feed it to the main tool we'll use in the project such as DataFrame from the pandas library
3. We're going to manipulate the data in DataFrame
4. We're going to save DataFrame to a file in different formats
5. We're going to inspect the data and get some results out of it

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