Extract Word table into Datatable

I have word document. In this document I have table with 15 rows and 2 columns.
In 6 row and 2 column there is another table (small table) with 5 rows and 2 columns.
I must extract this small table to DataTable.
Activity Read Table At Index crash on this table, not work. And in word, when I do Ctrl+G , I can’t find it small table by the index.
How I can do this task?

Can you share word file if possible.

I can’t, this is service information.
I would like to understand the technology how it can be done

Can you check How to read table in a Word document - #2 by Amrita_Mogali

Yes, I read this. But this not help me