A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
That depends: is the value of the truly the integer 20181102, for example? Or is really a date (11/02/2018, for example), and it merely appears to be 20181102 due to a cell format?
If it is really a date, use MONTH(A1) and DAY(A1) to "extract" the month and day numbers. Use TEXT(A1,"mmmm") and TEXT(A1,"dddd") to "exact" the month and day names.
If it is the integer 20181102, use --MID(A1,5,2) and MOD(A1,100) to "extract" the month and day numbers. The double negate ("--") converts text to number.