CREATE TABLE table_41835 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Game site" TEXT, "Attendance" FLOAT)

Who did the Giants play before week 7 in Tulane Stadium?
SELECT "Opponent" FROM table_41835 WHERE "Week" < '7' AND "Game site" = 'tulane stadium'
SELECT "Opponent" FROM "table_41835" WHERE "Game site" = 'tulane stadium' AND "Week" < '7'