There’s an answer to Bike files transmuting to html, but I can’t verify it for you. I let my Bike license expire. It’s a great product. I have too many great apps, though, and for the moment Bike is not on my system.
No, wait, I’m fibbing to you. I do absolutely know what I did.
I kept note of the cure (where else?) in my DT database for application notes. This is exactly how I fixed the bike-to-html issue on my system.
First, get the current contents of the AdditionalPlainTextExtensions preference with:
defaults read com.devon-technologies.think3 AdditionalPlainTextExtensions
If you get this warning, that option isn’t currently set:
The domain/default pair of (com.devon-technologies.think3, AdditionalPlainTextExtensions) does not exist
If it returns a dot delimited list of words (or one word like “.text”), then those are your current additional plain text extensions.
If the preference didn’t exist to begin with, write it with:
defaults write com.devon-technologies.think3 AdditionalPlainTextExtensions -string .bike
Or, you may have already had plain text extensions of, say “.f16.c47.dc3”. That would mean files ending in .f16, .c47, or .dc3 would be considered plain text by Devonthink.
If so, add bike with the command:
defaults write com.devon-technologies.think3 AdditionalPlainTextExtensions -string .bike.f16.c47.dc3
Verify the setting with a defaults read command.
If you decide to remove the hidden preference, perhaps because it’s too embarrassing to write about planes in plain text .f16 files, this command will get rid of the preference:
defaults delete com.devon-technologies.think3 AdditionalPlainTextExtensions
Give it a try. Read the documentation, verify the current setting, and then add .bike. I believe it will fix the problem.