umya-spreadsheet 2.3.3

umya-spreadsheet is a library written in pure Rust to read and write xlsx file.
Documentation 
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#[macro_export]
macro_rules! from_err {
    ($from:ty, $to:tt, $var:tt) => {
        impl From<$from> for $to {
            #[inline]
            fn from(e: $from) -> $to {
                $to::$var(e)
            }
        }
    };
}