Clean up data from a Wordpress CSV export

I have a food blog on WordPress and I’ve created a CSV export of all my posts (67 posts) and recipes (170 recipes). A number of cells in the export contain markdowns, HTML, meta-data. I require this data to be cleaned up to only display the written/legible content and the image URLs.

View CSV File here: https://docs.google.com/spreadsheets/d/1JtS8j59rhedELHu6tX_gSa9lBwO3BUZTBUVp6ktJJB0/edit?usp=sharing