You don't have to worry about Office 2011. According to Roaring Apps, it works just fine in Sierra. As an addendum to this, I use Office 2008 and it's working in Sierra as well. Roaring Apps is a good place to check compatibility. For the few apps that weren't listed there, I contacted the developers for info before I went for Sierra.

Do you know someone who has a broadband connection and could put the installer on a USB drive for you?


Jon

macOS 11.7.10, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365