Redwood_Pack_12.2_02.zip is a release file of the Minecraft resource pack Galahir950's Redwood Texturepack. It was published on April 18, 2013 and is 1.5 MB in size. For the full description, screenshots and every other version, visit the Galahir950's Redwood Texturepack resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.