Thanks. XlsxWriter.jl appears to be the only way in Julia to put images in spreadsheets, so I want to use it, but it’s lack of read support sent me back to XLSX.jl
XLSX.jl is doing everything else with the help of openpyxl. I haven’t tried it with other formulas the issue for me was with the =HYPERLINK() formula and I managed to solve it with openpyxl .hyperlink function rather than a string.