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.
It’s an option when saving in LibreOffice Calc.
Would be a pretty straightforward macro to (un)quote the formulas in Excel or Google Sheets etc.
I didn’t know calc could do that, cool!