Hello,
I try to create com.apple.launchservices.plist by script, with PlistBuddy (to force Safari to open in 32 bits. The key com.apple.safari has 2 entries, one is a string (i386 or x86_64) but the other is date like :
<00000000 00960003 00010000 c53f8ffa 0000482b 00000000 00501f88 0050c65d...