After all known compound file formats have been carved, their sectors are bookmarked and removed from consideration as possibly belonging to text, HTML or any other files. Using the “gather text” feature of X-Ways Forensics (or similar feature from a variety of existing forensic tools), text was extracted from the remaining sectors not bookmarked.
All .html and .txt files were manually carved and evaluated since no compound file format exists, identifying start, end, or location of structures within the file(s). Any fragmented text or .html files were manually put back together based on manual review of the content of the files.