The project is to build a Linux Mint machine to have the identical functionality and ergonomics as the existing Windows 10 machine. This stage relates to on-going work to make LibreOffice Calc workable. Unfortunately, it turns out that LibreOffice isn't fit for purpose. Specifically, it cannot reliably link workbooks, even in its own native workbooks. As a consequence, the project is now downgraded. My time is now better spent doing other, more productive things, with a greater chance of success. Background On 29Jul2018, I complied a detailed test using fresh, sample data created specifically for the purpose, in Excel on Windows 10, then had a virtual machine running LibreCalc on Linux Mint to import it. The basic spreadsheet functionality of linked workbooks failed haphazardly. I logged the test results on 29Jul2018 on AskLibreOffice and, to date, have yet to see any evidence of anybody taking ownership of recognising the issue and thus fixing it. The sole respon