To address your request, it’s important to note that does not appear to be a standard or widely known file or software utility. Instead, it frequently appears in SEC EDGAR filings within raw text or UUencoded data blocks, likely as a byproduct of how binary graphics or compressed attachments are converted into text format for submission.
"Cleaning the Crap"—How to write scripts that identify and filter out UUencoded binary blocks (like the "kty.7z" string) to get to the actual financial text. 0000862451-19-000002.txt - SEC.gov kty.7z
Recognizing Suspicious Attachments: Why You Shouldn't Click Random .7z Files Target Audience: General internet users and office workers. To address your request, it’s important to note