Importing Lots into TS2
Below is an article from The Sims 2 Official Game guide from Prima.
Lots, both occupied and vacant, can be uploaded to or from TheSims2.com via the Custom Content Browser.
Lots not downloaded from the browser must be installed via a package installer or manually placed in My Documents/EA Games/The Sims 2/Lot Catalog.� If the filename of the manually placed lot PACKAGE file is already in use in the Lot Catalog folder, alter the numerical portion of the filename taking care to keep the same number of characters in the file name.� Proper format for the filename is: "cx_########.package".
No matter the source of the file, added lots appear in the Lots and Houses Bin.� The bin, in turn, is sorted by Occupied and Unoccupied Lots.� Occupied Lots contain the lot's family but without any of the lot's story or relationships outside the lot.� Memories and family trees pertaining to non-household Sims are, however, preserved.


