What is the header [CS Format = A] for?

Question

I am trying to determine the type of file whose contents begin with "[CS Format = A]".

I extracted the files from blobs from the database that was transferred to me. I do not have access to the software that created this database. There is a column that I suppose means compression (it's called COMPRESS). Also in the specified database were the names of the files and their extensions. I extracted all the files from the database and everything works, except that marked as compression, cannot be read because it is a file type of its own (IE, if it was a PDF, before it was saved in this database, now that I pulled them all back, it cannot be analyzed as pdf, like other non-converted "COMPRESS" pdf). When I open them and look at them, the first 13 bytes are always "[CS Format = A]" (I swear I saw somewhere earlier, but I can’t remember for life that), followed by binary data,Magic can't tell me what I'm looking at, and Google doesn't help much with my very strict search term. They were saved in the MSSQL database before the files were provided to me, most likely 2005 by the time it was pulled out.

Answer 1

This may not be useful, but just to make sure ... Oracle will automatically unpack when selected.

If it still shrinks after that, you are looking at some third-party component, which can be almost anything, but I would start by testing Mac / Win first before starting all third-party compression tools.