On 2/19/19 11:12 AM, Anders Nelson wrote: Hi Anders, Not that I'm aware of, unless Al has some document squirreled away that we don't know about. What I know is from a lot of examining DW floppies and trying to reverse-engineer it--and what little I could find on the web. The DW filesystem is basically a linked-list sort of structure. There's a volume header block that contains an extent list and allocation map, from which documents are treed from. Each document, in turn, links to other entries that describe various properties of each document. For example, the dates of the document, its name, the list of positions of lines within the document, the document text, the formatting information for the text, and so on. It's pretty complicated. One aside is that even though the DW is an 8086 system, numeric quantities are big-endian. --Chuck