A zaa file extension is related to the Unix split utility. A zaa file contains output data.
ZAA file extension - Output of the UNIX split utility
What is zaa file? How to open zaa files?
File type specification:
The zaa file extension is used for output files from a UNIX split utility.
The split utility shall read an input file and write one or more output files. The default size of each output file shall be 1000 lines.
This zaa file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.