The Foundation sees this as a contradiction to the EU’s own interoperability goals. Although XLSX is standardized as OOXML according to ISO/IEC 29500, Microsoft’s implementations often deviate from the specifications. Furthermore, features often change undocumented, which complicates compatibility with open-source software such as LibreOffice.
This is a conversation about the issue of proprietary formats in our institutions.
And I think PDF is a problem in that regard. It’s not fully open and the format still can break. Forms in particular are still very problematics. Forms are very useful in institutions…