I am sorry there seemed to have been a misunderstanding in your earlier ticket.
The .swf files are not downloaded for editing, you would only do that in order to re-upload the file to another Clarity instance, as it's already compiled.
What was probably intended to say, is that the design files for Clarity out of the box portlets are available as 'software' downloads in Clarity provided your user has been given the appropriate rights (just like downloading the OWB / MSP interfaces or the XOG packages also require you to have the appropriate rights, such as those I've given my test user):
Resulting in this download option, the second link containing .xlf files of the portlets:
In order to make sure you get the correct design files for your version of Clarity (or your version of the add-in for Clarity) you should always use these ones provided.
If the portlets you want come from an add-in instead, then you should download them from support.ca.com after logging into it, again making sure you get the right files for your version.
This link should help you locate the correct versions and files:
CA Clarity PPM Solution Pack Index - CA Technologies
E.g. from that page:
If you don't mind, would you please let me know the issue number you received help from? Thank you.