New Spreadsheets are now available in GAFE domains on Scheduled Release!!

The Script Gallery is gone - and Add-ons are here.

One of the Add-ons is  Mapping Sheets by XS.

New Spreadsheets
They're new.  They're faster.  They're better.  (They're also different.)  If you still need an old sheet (because you need a script that hasn't been translated, or you need a Form and spreadsheet script to run "on submit" you can still get an old-style sheet file, even if you've already converted to new sheets.
To create an "old" spreadsheet file: