How to make unknown font width known?

[Yukihiro Nakai <ynakai redhat com>]

Hi,

When I open Japanese Excel file on Gnumeric, it always barks like:

** (gnumeric:28982): WARNING **: EXCEL : unknown widths for font '*******', guessing

('******' is MS font name in Japanese multibyte - hide for this public list ;-)

Adding an appropriate entry to XL_font_width strct seems to
prevent this message and let gnumeric know the true width. But
how can I get the value? If there are some tools for this, please
let me know. And I need to know what the default character is for this,
too.

Thanks.
--
Nakai