The bigminimap01.51300.zip file you have requested: User Interface Mods / Maps / BigMiniMap Addon - 4.2kb is not available. Perhaps try browsing all files for the game World of Warcraft and upload any files you want to share or are missing. This is the only information we could locate:
Provides a binding to toggle the size of the minimap between 1.15 and 2 times (configurable) the normal size. Thanks to diiverr for the screenshots!