There's a frustrating reality buried in that error message, and it deserves a straight answer: if you're on an iPad and trying to interact with form controls in Excel, you've hit a hard wall. The message isn't a suggestion or a temporary glitch. It's the software telling you that this version of the app simply doesn't support what you're trying to do. For the user who asked, and for anyone else who's stared at that dialog box with a mix of confusion and irritation, the practical takeaway is this: don't waste time looking for a hidden setting or a clever tap sequence. The workaround isn't in the app's menus. It's in changing your approach.
What does that mean in real terms? If you need to interact with form controls like checkboxes, option buttons, or dropdown lists, the iPad version of Excel is not the place to do it. You have a few honest paths forward. You can open the same file in a desktop version of Excel, make your changes there, and then return to the iPad for viewing or light editing. That's not elegant, but it works. Alternatively, you can rebuild the control's functionality using native iPad features like data validation, which often covers the same ground without the compatibility baggage. The key is to stop treating the error as a puzzle to solve and start treating it as a boundary to work within. Your goal isn't to force the tool to do something it won't do. Your goal is to get your work done with the tools that actually function.
This isn't a story about a missing feature that's coming next month. It's a story about knowing your environment and planning accordingly. The person who posted this question is likely comfortable with spreadsheets, maybe even skilled, but they're being held back by an assumption that the iPad version behaves like the desktop version. It doesn't. And once you accept that, the solution becomes clearer. You either shift your workflow to a device that supports the controls, or you redesign the sheet so it doesn't rely on them. Both are practical responses. Neither requires you to abandon your iPad or your data.
The next time you see that error, don't read it as a challenge. Read it as a signpost. It's telling you that the file you're working with was built for a fuller feature set than the one you're holding. Respect that boundary, adjust your method, and move on. The workaround isn't hidden in the app. It's in how you choose to work around it.