Can't add threads in Inventor 2013

Question

I can't add threads in Inventor 2013, I get an error message saying the thread.xls is missing.

Answer

In Inventor 2013 styles have been overhauled, and you need to migrate your styles over to the 2013 format. The file threads.xls is now in a new folder location called XLS, where it used to reside in the Design Data folder. There is a nice blog post by John Landeros, that explains the process of migration, and even has a video, please see http://inventor-tales.blogspot.co.uk/2012/05/theres-been-change-or-two-migrating.html