I’m finding many articles on the web where it is implied that you can view the .mobileprovision file contents in a text editor. For example, this Urban Airship post:
When push notifications are enabled for an app, the aps-environment key will appear in the .mobileprovision file specifying the provisioning profile:
<key>Entitlements</key>
<dict>
<key>application-identifier</key>
...
However the mobilprovision files I have (obtained within the last few days) contain 466 1/2 rows of 8 groups of 4 hex digits, (e.g. 4851 3842 4176 2845 0a09 01a2 404d 4382). How can I view this type of file?
You are using a text-editor that is a bit too clever for you :D.
Your editor finds out that the file actually is binary and shows it as a hex-dump – for example Sublime 2 does it that way. Open that same file using TextEdit. You will see a couple of lines of binary garbledegock and then some plain-text (XML) that should contain the information you are looking for.
However, do not edit that file using TextEdit, that will render it unusable!