When you have downloaded the file, unzip the file first and save the unzipped file on your computer somewhere (it is ready for use immediately). In order to do that you need the Delphy's Sims 3 Pack Multi-Extracter However you can convert sim3pack-files into package-files. You can only combine and compress package files !! Delphy's Sims 3 Pack Multi-Extracter (Link) If you don't have these programs, please download and install the programs first !! To start of, you need to have (or download and install) a couple of programs in order to get the compressing of the files to work. *** In order to get this to work, your Sims 3 game should be closed *** The 2nd part will be about the compressing itself.

The first part is about how to prepare your files before combining / compressing.

In order to not lose track, I have decided to split the tutorial in 2 parts. Mind you, it still is rather 'technical' and it will probably remain 'technical', but if you go and spend a couple of hours on it, the results will be rewarding !! I hope to solve this, by writing this tutorial. Now there are some tutorials about this combining and compressing, but I still see a lot of questions about this and also Simmers who don't get it to work. To keep this in check, I have come across a method to combine and compress your custom content and the result is that your folder(s) with custom content are cleaned up AND your Sims 3 game will load quicker AND custom content will show up faster in game, when for instance you are building or decorating a house AND browsing through clothes and accessories in CAS is like 'normal' again and how it should be :D If you have or own a lot of custom content, you tend to lose track of all the content you have and your Sims 3 game also slows down considerably and it takes 'ages' in CAS before you see your clothes and accessories, which makes creating Sims like an 'ordeal'.

Sims 3 custom content