- In Revit 2012, export all families to RFA files (File - Save As - Library - Family -
In 2011, you might be interested in this method.
- View the exported folder in Windows Explorer.
- Sort By - Size
- You will see the most bloated families at the top.
To reduce the size of the largest families, I can now:
- Open them from the project
- Delete any unnecessary data (such as imported DWGs)
- Purge and then
- Reload them into the project.