I've looked and not found an answer to this yet. I assume the functionality is available right now, though, given the blog from 7 years ago about copy and pasting from Excel.
We have clients who frequently change the formulas they use to calculate quantities and costs based on those quantities, so it's imperative that the formula persist during a copy from their working sheets.
Our worksheet setup is now more aligned to the demo at www.igniteui.com/.../loading-data.
What about calculating formula in some area and then copy it's image to the Excel sheet using some tools if it's possible!
Actually, that's exactly what we're doing. We have a separate screen that users can input formulas (using keys to represent columns), searchable by specific criterion. It can be a bit of a logic nightmare, trying to catch the hierarchy of all combinations of such criterion, but now we calculate using the correct formula upon reload of the igGrid object (after they've copy/paste/save all the values from their Excel sheet to the backend DB.
i'm happy to assist anyone else running into similar issues in this way. Our implementation populates the formula in the formula bar and is almost entirely Razor/Ignite based.