The old Google Spreadsheet has a default row height of 17. The new Google Sheets has a default row height of 21.
After a spreadsheet is auto-migrated by Google to the new Google Sheets, the original row heights are maintained. That's fine.
However, when I create a new worksheet in the migrated sheet, the rows also have a row height of 17, whereas when I create a fresh Google sheet the default row height is 21.
The problem is that layouting in new Google Sheets differ based on the fact whether they were created from scratch or from a migrated old Spreadsheet.
How can I change the default height of rows of a migrated Google sheet from 17 to 21?
I guess my only option is to create a new spreadsheet from scratch and copy each worksheet individually.