If you ask Microsoft’s Copilot “What is the significance of an exclamation point behind the word “library,” it dutifully recounts the standard English usage for that mark of emphasis.
An icon of a circle with a diagonal line across ... An icon of a paper folder. An icon of an exclamation mark on a circular background. An icon of a digital camera. An icon of a caret arrow.
An icon of a circle with a diagonal line across ... An icon of a paper folder. An icon of an exclamation mark on a circular background. An icon of a digital camera. An icon of a caret arrow.