Lead Technologies archive
From Just Solve the File Format Problem
Lead Technologies archive (official name unknown) is a compressed installer-archive format used in some Lead Technologies software. The file is usually named "SETUP.LTA".
Format details
Multi-part archives are common, with multiple "SETUP.LTA" files comprising a single archive. The byte at offset 4 reflects the volume number.
The compression method is unknown.
Software using LTA usually includes an LTEXPAND.DLL file, which presumably contains decompression library code.
Technical note: The format is not as simple as it may look at first. It does not evidently contain the offsets, or sizes, of the compressed form of the member files. (Possibly uses "solid" archiving?)
Identification
File start with ASCII "LTEC".
