Thanks to sixcolors.com for writing (a guide about restoring files from iCloud Drive)[https://sixcolors.com/post/2015/07/recovering-deleted-icloud-drive-files/] because I wrote a blog post in iA Writer on Mac (using iCloud as storage), then moved to MarsEdit, but because of some problem with publishing (Markdown not converting to HTML), I deleted it from WordPress itself (including from trash) because I wanted MarsEdit to republish it. I also deleted it from iA Writer because I continued editing in MarsEdit and didn’t need two copies of the text.
Then after refresh in MarsEdit my post disappeared from MarsEdit and I was left with no copied. Time Machine also didn’t have time to back up any copies.
Luckily, a simple Google search led to Dan Moren’s article on Six Colors revealed that it is actually possible to restore deleted files. Phew.