Sheetgo creates a new sheet to not overwrite any of your other sheets containing data. The newly created sheet is underlined green and locked. It is managed by Sheetgo. Every time the connection associated with this sheet is run, the sheet is being refreshed. Therefore you shall not modify this sheet.
Attention: If you create a new connection with a name that equals one of your existing sheets, Sheetgo will overwrite the data inside this sheet!