texupport

Sheet set templates must have have all lowercase dst extension

When  creating a sheet set template by placing a DST file in the SheetSetTemplatePath location, the file must absolutely have an extension of .dst (case sensitive).

If an uppercase character exists in the extension, the sheetset template appears with the extension in the listbox and the system will then search for YourTemplateName.DST.dst. 

When it doesn’t find the template, a “File Not Found” dialog reports “Cannot find the specified sheet set data (DST) file.”

Workarond:
Create sheet set templates with a lowercase dst extension.

First Appeared: Unknown
Status as of AutoCAD 2009 version 3: Still Reproducible.