EA archive

File Format
Name	EA archive
Ontology	Electronic File Formats Archiving EA archive
Extension(s)	.ea, .pea
Released	≤1989

EA archive (official name unknown) is a compressed installer-archive format used in some Electronic Arts software.

Format details

Each archive member has a field for the compression method. Known methods are 0 for uncompressed, and 1 for LZW. The LZW implementation appears to be fairly typical, similar to Zoo but with a maximum code size of 12 instead of 13.

Identification

Files start with byte 0x1a, followed by ASCII "EA".

Sample files

• [1] → .../*.EA
• [2] → *.PEA