How to convert a table column in comma separated values (CSV)

To convert a table column in comma separated values (CSV), I use the following snippet:

DECLARE @table TABLE
(
    Id INT
)

INSERT INTO @table
VALUES (1),(5),(88), (99)

SELECT SUBSTRING(
(
SELECT ',' + CAST(Id AS VARCHAR(200))
FROM @table 
FOR XML PATH('')
)
,2,2000) AS VAL