That's the one all the cool kids use these days. As a "classic" person I prefer Openoffice. Either should do the trick.
OpenOffice originated with Sun, who released it as open source. Later, Oracle bought Sun, then sued Google over use of their previously open Java in Android. That caused nearly everyone who had built software platforms using Sun's previously-open technologies, including OpenOffice, to jump ship. (The Linux port of ZFS is dead for the same reason.)
The folks working on OpenOffice took a version of OpenOffice which predated Oracle's acquisition, and forked it. They named their new product LibreOffice. For the purposes of continued support, LibreOffice is the safer choice. There's no telling if/when Oracle will sue anyone maintaining OpenOffice, killing the project.
If the computer your daughter is working on is connected to Internet, there are online versions of Word/Excel/etc at Microsoft' http/office.live.com Google also offer online versions of "compatible" apps.
Edit: Laptops / tablets 10.1" and below often come with stripped-down version of Microsoft Office.