Excel has an "Evaluate Formula" feature (it's located in the Excel Formulas ribbon among the Formula Auditing group, as shown in the picture below).
Is there an equivalent to that Excel feature in LibreOffice Calc?
Following fixer1234 suggestion, I add a link to a site showing an example of how the Excel "Evaluate Formula" feature works. This way, users familiar with Calc but less familiar with Excel, may better understand what the matter is about and more easily contribute information.
In the example you can notice what I call the step-by-step "evolution" of the formula. In fact, with every step of the evaluation process, part of the formula is replaced with its actual result till the reaching of the final result. (This may come very handy when dealing with particularly long formulas.)