DECLARE @Filepath varchar(75), @file varchar(25), @Cmd varchar(150)SET @file = 'test.csv'SET @filepath = 'C:\'SET @cmd = 'ren "' + @filepath + @file + '" "' + REPLACE(@file, 'csv', 'xls') + '"'PRINT @cmdEXEC xp_cmdshell @cmd, NO_OUTPUT