Numbers
Numbers automatically saves your spreadsheet as you work and gives it a default name. At any time, you can rename the spreadsheet or create a duplicate of it with a different name.
Go to the Numbers app on your iPad.
Open a spreadsheet you want to rename, tap in the toolbar, then tap Rename.
Enter a new name, then tap Done.
To quickly delete the current name, tap in the text field.
Go to the Numbers app on your iPad.
If a spreadsheet is already open, tap in the top-left corner to see all your spreadsheets.
Touch and hold the spreadsheet thumbnail, lift your finger, then tap Duplicate.
The duplicate appears with a number appended to its name.
If you can’t see the spreadsheet you want to copy, try searching for it, or tap Browse or Recents at the bottom of the screen. See Find a spreadsheet.