Once the data has been successfully parsed from your flat input file you can output it in any applicable hierarchical format (JSON, XML, whatever). There are many standalone data viewers for such formats which will fulfil your requirement to expand/collapse parts of the tree. I doubt that MS Word (being your choice) is one such viewer but I have not used it for a couple of decades so perhaps it has improved since.

In reply to Re^5: Most efficient way to remove some text from a string by hippo
in thread Most efficient way to remove some text from a string by adamZ88

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