A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Sean C
Date: 2021 Jan 7, 16:16 -0800
I just tried saving the spreadsheet in .xls format and Excel threw up a bunch of warnings about "serious loss of functionality". The "slicers" (country/city filters) on the G.C. route tab disappeared. The almanac still seemed to function - as did the buttons. But I'm not sure what else might have been broken, so I'd rather not put the converted version out there. Sorry.
Thank you for testing it on another platform, though!