With CSV selected in Export > Filetype, MyDataMerge will export a Adobe® Indesign®’s data merge compatible CSV file. Use this option if you don’t want to merge with MyDataMerge but want to use MyDataMerges ability to customise the data.

Please note: Both CSV options …

• CSV (export only) – Exports a CSV file
• CSV (export and link) – Exports a CSV file and links it with your data in InDesign so you can continue with the data merge there

… cannot handle MyDataMerge specific actions like:

• Applying styles
• Applying the last action if a setup fails
• Applying GREP actions
• Applying Hyperlinks
• Use Automator workflows after export

If you need any of these please use MyDataMerge for merging your data.