This is what Craig Scott, the developer of iThoughts HD wrote about his issue:
The whole scheme whereby apps decide whether they can open a given type of file is ‘messed up’ (in
my opinion.) In the old days, a simple filename extension was sufficient (.txt or .markdown) Nowadays it is
also possible to tag .markdown file as being ‘equivalent’ to a .txt file.
It sounds like Editorial can open .txt (and equivalent) files. Unfortunately iThoughts doesn’t tag .markdown as
equivalent to .txt and Editorial won’t open .markdown. The reason it works for the other chap is (probably)
because he has another app installed which tags .markdown as equivalent to .txt (at a system level)
Having looked at his screenshot, I see he also has MakeDoc installed on his system (another one of my apps.
What makes that interesting is that MakeDoc DOES tag .markdown as equivalent to .txt
I’ve attached a ‘code’ which enables you to download MakeDoc for free from the AppStore - to see if
that ‘fixes’ the issue.
Resulted that I can export .markdown to MakeDoc once I had installed it, but still not to Editorial.
Maybe OMZ could consider adding .markdown as tag equivalent to text files in order to enable smooth collaboration between iThoughts and Editorial, these two one-of-a-kind premium apps.
What is your opinion?