To use this script in Google Drive:
- In your spreadsheet, click Tools->Script Editor.
- Paste the contents of Code.gs into the editor.
- Save.
- Select "Allow" when Google asks about permissions.
- Reload your spreadsheet.
You should now see a new file menu option, "Export".
I run this code and an error message " We're sorry, a server error occured. Please wait a bit and try again.(line 14,file "Code")"
Thanks in advance if you can help