It is generated during the processing of SEC documents like 10-Ks, 10-Qs, or 8-Ks .
In the context of SEC filings, this specific file structure (often seen as a .7z or .zip archive) typically contains the of a corporate filing. Key Characteristics of this file: R0779.7z
The "useful text" refers to the searchable, plain-text version of the filing that has been stripped of unnecessary metadata. It is generated during the processing of SEC