Best office suites for most linux distribution is Libreoffice. You will get word proccessor, presentation, spreadsheet, drawing, and database software. This office available on Archlinux repositories.
To install it.
#pacman -S libreoffice
If there's language option choose that you needs, and the others just enter.
If done, libreoffice will available on office menu.
Here's the snapshot.
|Calc, or Excel on Ms.Office|
|Impress, Power Point on Ms. Office|
|Writer, Word on MS.Office|