LibreOffice from Ninite.com
Actually that's two tools. LibreOffice gets me all the usual Office tools for FREE plus Ninite.com delivers it without added spyware or toolbars.
I've found an interesting article on office software. I've already heard about Slack and Trello, but the rest was quite interesting - especially Parkalot. You can find the article //firstname.lastname@example.org/5-tools-little-known-in-the-office-environment-but-widely-used-in-it-66718fea6971]here.
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