I am trying to export the XPS data from CASA software to ASCII format but getting an error stating "Demo version: Data not saved". Please suggest how to do it.
Generally in demo versions, which are only there for demonstration purposes, you can use the tool of the software, but you can't save your work, copy paste them to another platform, etc.
Basically you can't make your work exist outside of the software from the moment it's done, till you close the window.
If you're getting that message, it means that you've installed the demo version.