Unhide all sheets except for

Hi I am trying to create a script where it hides all sheets except for the specified ones, however, other people either change the name of the sheet, or add their own. I am having issues where the script uses the sheet index as opposed to the name.

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Fantastic! Thank you!

This only works if the sheet is named "Sheet1", I would prefer if it was .sheet1 - the indexed number, this way if someone changes the sheet name the macro wont brake...