This thread is resolved. Here is a description of the problem and solution.
Problem: The client wanted a way to translate their entire website easily.
Solution: There is no "Translate Everything" process that will give you all the items that require translation in a single CSV or collection of files.
When you "send" a number of translations to the Translation Queue using Translation Management, you can then export "Translation Jobs" as XLIFF files for translation using a desktop tool. You can find more information about XLIFF files here: https://wpml.org/documentation/translating-your-contents/using-desktop-cat-tools/configuring-xliff-file-options/
You will be able to export a lot of items as ".xliff" or ".po" files that are editable with a software like PO Editor (hidden link) or QTranslate (hidden link), and you can import them back into WPML using the same tools. You will find features to export translation items in the different tools mentioned above.
Relevant Documentation: Translation Management (https://wpml.org/documentation/translating-your-contents/)
Theme and Plugin Localization (https://wpml.org/documentation/getting-started-guide/theme-localization/)
String Translation (https://wpml.org/documentation/getting-started-guide/string-translation/)
Media Translation (https://wpml.org/documentation/getting-started-guide/media-translation/)
WooCommerce Multilingual (https://wpml.org/documentation/related-projects/woocommerce-multilingual/)
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