Lock spreadsheet

This confused me, too. It seems to be hidden in the three-dot menu and is called "Reading View". If you open that menu (upper right) and client Reading View, the Edit you/we used to see shows in the top right.

But, be careful: even with the Edit showing, a double-click on a cell can allow changes. It's a weird situation IMO, but this is the best I can find to replicate what you/we used to use. Hope this helps.

If you're trying to protect a whole document (a spreadsheet in Numbers lingo), then you have File > Set Password... .

If you're trying to lock a table to prevent inadvertent changes, then you can click the table and go to Arrange > Lock.

Of course any user can click that table and go to Arrange > Unlock. So it doesn't provide complete protection.

SG

This is the Numbers for Mac forum. I think what you are referring to is a feature in Numbers for iOS/iPadOS that isn't a "lock" per se, but more of a display mode. The 'Edit' button to enter edit mode is still there in Numbers on my iPhone and iPad.

SG