.odt files are likely to be offered or automatically become Downloads.

Diary 2013 2018 Elec-Guide
.txt files should open in Browser - use browser BACK button to dismiss
but not all .txt render properly so experiments
try HTML with PRE
main issues either way is how browsers do not like the GBP pound character shift-3 - htlm prefers ampersand pound semicolon
Issues, Problems, Mistakes
here is the original .txt file
Issues, Problems, Mistakes