Here's a radical idea: One government worker sending a document to another government worker should not involve a proprietary, for-profit data format. With a hardcopy paper document this would obviously be unacceptable, but since digitization and software eating the world, we pay our fees to Microsoft and go about our merry way. I'm middle-aged and tired, I'm not going to fight this fight anymore. Maybe some day legi…
Microsoft Office documents haven't been proprietary for a long time. The formats are publicly-documented and Microsoft maintains open-source libraries that read/write them.
They're all XML-based and unobfuscated (beyond their convoluted design).
There are also many FOSS applications, including LibreOffice, that are perfectly fine as replacements for Microsoft Office.
Proprietary formats are a problem, but not with Microsoft Office anymore.
We should all be a lot more annoyed by PDFs, honestly.