Hello Peter Murray,
Thank you for confirming what you have already tried.
Since restarting the iPad, reinstalling Excel, resetting its settings and credentials, and changing the storage location did not help, here what you can try next.
First, please protect any changes that are still visible in the workbook. If possible, copy the affected sheets or data into a new blank workbook, or use Excel for the web or Excel on another device to continue working with the cloud copy.
To determine whether this is a workbook-specific problem or an Excel for iPad problem, please test the following:
- Create a completely new blank workbook in Excel on the iPad.
- Enter a small amount of data and check whether it saves.
- Test one other existing workbook that was not created from the affected file.
- Check that the iPad has sufficient free storage under Settings > General > iPad Storage.
Please also provide:
- The Excel app version shown in Settings > Excel.
- The iPadOS version shown in Settings > General > About.
- Whether the freeze affects every workbook or only certain files.
- Whether the new blank workbook can be saved locally and to OneDrive.
- Whether Excel displays any message such as Uploading, Upload failed, or Read-only.
Please avoid repeatedly force-closing Excel while unsaved changes remain visible, as this could result in those changes being lost.
Feel free reply back to this post and update me on this issue, I'll be happy to help.