: Common for personal tasks or casual conversation.
If you are looking for the grammatically correct or "proper" ways to write this, consider these alternatives based on your intent: Grammatically Correct Versions Done.EXE
The phrase "Done.EXE" is technically improper in standard written English but is used in digital slang to express that something has been definitively completed or "executed" like a computer program. : Common for personal tasks or casual conversation
: If you are actually naming a computer file, .exe is the standard file extension for an executable program on Microsoft Windows . professional statement of completion.
: A more formal alternative for status reports or official updates.
: Use this for a simple, professional statement of completion.