Hello SebastianRJS,
We appreciate you reaching out to us again here in Microsoft Community.
Thanks for reaching out regarding your concern with the Excel for iPad multiple cell selection. Let’s work together to sort this out.
In Excel for iPad, tapping then dragging the selection handler will select multiple cells. Let’s identify what’s causing the issue so we can come up with an accurate recommendation. To get started, may we clarify if you’re experiencing the issue on
a specific Excel file or the issue is also apparent when you’re working on a different Excel file?
To further isolate your concern, we'd like to request a video or screen recording of what's exactly happening on Excel This way, we can properly diagnose the issue you are getting. Identify the cause and be able to provide suitable resolution. You can record
your screen using the built-in recorded of your iPad.
You can share the file by uploading it on OneDrive (check this link for
steps on how to so). Then send us the link by replying to ourPrivate Message. To view this, click yourusername or account nameon the top right corner of this page. Then, click View private messages.
To notify us and have us get back to you, simply reply to this post.