I added a fix for #91 in here, too since they're related.

@billdenney This isn't directed at you but a lot of these workarounds for =HYPERLINK() could be avoided if writexl just used the native support for urls in Excel provided by the libxlsxwriter worksheet_write_url() function.

See also:
#5 (comment)

@jmcnamara , thanks for those pointers. I'll try to rework to use those functions. I'm much less of a C than R programmer, but I'll give it a shot.

@jmcnamara, thanks for the pointer. I made the relevant PR in #92 to use worksheet_write_url().