.SIMS3PACK File Extension
File TypeThe Sims 3 Package File
This file is saved in a binary format, which requires a specific program to read its contents.
What is a SIMS3PACK file?
Game package file created for The Sims 3, an open-ended life simulation game in which players manipulate a simulated environment with virtual people called "Sims;" contains visual data that represents any part of the virtual environment, such as "Sim" people, clothing, and buildings.
SIMS3PACK files may be created by anyone using a third-party Sims 3 package editor. When opened, content from a SIMS3PACK is directly imported into the game. Newly imported content is available the next time The Sims 3 is run.