Dear All, 
My client have custom uniformat for their company. They use Revit and can manage to insert their custom uniformat by txt file. 
I have asked them to send me the .xml format to import it in Classification Manager, but it shows that the format is invalid. 
If i open client's .xml file in spreadsheet, the information is a lot simpler and less than the official Uniformat. 
Is there any other way to import custom classification as required?