ms sql database mail and csv file attachments - how to "escape" correctly

How do I ensure that query results placed in a csv file will "escape" correctly? Below works ok, but if there is a comma in the data, the csv file does not show correctly in excel. Is there some way to contain each cell's data in the csv so it will open correctly in excel?

Thanks.

DECLARE @sub VARCHAR(100)
DECLARE @qry VARCHAR(1000)
DECLARE @msg VARCHAR(250)
DECLARE @query NVARCHAR(1000)
DECLARE @query_attachment_filename NVARCHAR(520)

SELECT @sub = 'Nightly Report'
SELECT @msg = 'This is an automated message.'
SELECT @query = 'SELECT * FROM [sem].[dbo].[04AGSEMQuoteFormProduction] WHERE [sem].[dbo].[04AGSEMQuoteFormProduction].[ServerTime] >= cast(getdate() as date)'

SELECT @query_attachment_filename = 'report.csv'

EXEC msdb.dbo.sp_send_dbmail
            @profile_name = 'AG Reporting',
            @recipients = 'email@email.com',
            @body = @msg,
            @subject = @sub,
            @query = @query,
            @query_attachment_filename = @query_attachment_filename,
            @attach_query_result_as_file = 1,
            @query_result_header = 1,
            @query_result_width = 256 ,
            @query_result_separator = '	' ,
            @query_result_no_padding =1;

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