Over the years we’ve published two different blog posts on our website and one post here on Discuss with documentation on Codebook’s Import and Export features, and the format used. Each has been superseded as we’ve made adjustments and they were a bit long-winded. We’ve decided to put together more comprehensive (and ideally more concise) documents on each feature, with a detailed description of how they work and what to watch out for, on our website:
In particular you’ll want to pay attention to the section about pipes (the | character)—if you do not your data CSV may not be imported as expected.