You have several options:
- Click Ctrl-Alt-E to get the expressions dialog. You can do a search here.
- Download the Metascan model (search this site) which will display the meta data for a model.
- Create a project folder (-prj folder with the same name as the QV model), save the model and use grep or a similar tool to scan the XML files for the field name
Hope that helps
Try Document analyzer file created by Rob Wunderlich. It helps in analyzing the expressions and the dimensions used in your qlikview file. http://robwunderlich.com/downloads
Hope this helps you.