> the file format is an open standard and can be opened in myriad programs as is or converted to html, rtf, markdown etc. Have you seen that work well in pract

> the file format is an open standard and can be opened in myriad programs as is or converted to html, rtf, markdown etc. Have you seen that work well in practice? I haven't - if you want to reliably open Microsoft Office docs, the only answer is Microsoft Office. Just because it's open doesn't mean it's coherent, consistent, or possible to implement.