Hi! This PR adds date support to XLS. Yes, copying is_custom_date_format/is_builtin_date_format_id is not good, but, I think, it can be refactored in future PRs, after merge this and #296 (see also #303).
I also added support for 1904 date, but that is just hack now. Maybe add a flag/enum in DataType::DateTime()? This can also be used in xlsx/xlsb.
Hi! This PR adds date support to XLS. Yes, copying
is_custom_date_format
/is_builtin_date_format_id
is not good, but, I think, it can be refactored in future PRs, after merge this and #296 (see also #303).I also added support for 1904 date, but that is just hack now. Maybe add a flag/enum in DataType::DateTime()? This can also be used in xlsx/xlsb.