A high-quality repack will include the official Blizzard 1.31 patch files inside a directory so you can re-apply them if needed.
launched, the official Battle.net client forces you to download a massive ~30GB file—even if you just want to play with classic graphics. 1.31 repack is typically around repack warcraft 3 frozen throne 131
One of the main reasons players use 1.31 is the expanded map limits (up to 30MB) and new JASS/Lua scripts. : Place .w3x maps in Documents\Warcraft III\Maps . A high-quality repack will include the official Blizzard 1