Excel works 100% same way in this regard, as Calc does.
This argument appears again and again. Every newbie comes across this (myself included). E.g., the reasons are explained in LibreOffice Calc not computing functions (showing function, not output) - #18 by mikekaganski. Then, we have tdf#150264 filed recently, with some discussion and mockup.
And I simply do not believe that the steps outlined in this exact thread (both those posted by myself, and those listed in the FAQ that @erAck created) didn’t work when followed correctly. I would be glad to help a question like “I follow these steps, it doesn’t work, let me explain what I see on each step and where it diverges” … it would be useful also to find ways to improve our description if they happen to confuse people (even though I create screencasts to reduce that possibility) - maybe there’s some set of data that resists our steps…