To contribute something maybe useful for Windows users:
for /R %%i in (*.sims3pack) do s3rc.exe -fD "%%i"
for /R %%i in (*.package) do s3rc.exe -fD "%%i"
for /R %%i in (*.nhd) do s3rc.exe -fD "%%i"
for /R %%i in (*.sim) do s3rc.exe -fD "%%i"
for /R %%i in (*.dbc) do s3rc.exe -fD "%%i"
@pause
Save this with an text-editor (Start > Run > "notepad" > OK, f.e.) to s3rcBatch.cmd
The file icon has now (depending on your Windows-Version) something like cogwheels.
If you copy this file f.e. in your Save-Folder TOGETHER with the s3rc.exe, and double-click on it, it decrapifies all .sims3pack, .package, .nhd, .sim, .dbc in every subdirectory (i.e. save-game) it can find.