I used to copy and paste out of the code view in WordPress' backend into Notepad++ and had a set of RegExes that I used to use for translating the file as a text file, and to convert the shortcodes in square brackets into inline tags and setting the opening and closing patterns.

E.g. for [vc_row el_class="content"] and [/vc_row] the opening would be \[vc_row el_class="content"] and the closing pattern \[/vc_row] and set as a tag pair

For [contact-form-7 id="2944" title="XXX"] where you want to translate XXX then \[contact-form-7 id="[1-9][0-9]{0,3}" title=" as the opening pattern and \"] as the closing pattern. 

Thanks, Michael Bailey. That would indeed solve the shortcode issue, but on the other hand the HTML code would no longer be recognised out of the box.

The HTML in the shot above seems to be showing tag brackets as the HTML encoding - not sure if you have seen this Community piece - Wordpress XML - cleaning up with a regex but how to apply - Regex and XPath - Translation Productivity - RWS Community (sdl.com) which might help.

Thanks.

The solution with the plain text processor requires me to configure all HTML tag definition rules again (and that gets complicated when you want to include attributes for translation). 

The Data Protection app would indeed help with the [vc...] and [/vc...] tags, thanks!

In one of the other articles, I also saw that pail mentioned the CleanUp Tasks app as a possible solution. I had a very quick look at it yesterday evening and it didn't seem like a very straight-forward tool to use out of the box, but I'll have a go with that as well.

Thanks again.