ISO 8601 profiling proposals

[Chris Rae]

I think everyone here knows me but, in case not, hello - I was the Excel subject matter expert present in Paris and at a couple of the DII events. I've been working on file format support for a few years now - mostly OOXML, but also our own legacy binary formats and Excel's import/export of other apps' binary formats.

In Paris, Gareth and I prepared and presented some thoughts on how to resolve ambiguities around the ISO 8601 support that was introduced at the BRM. The key goal was to make clearer what was meant by "date values stored in cells within a SpreadsheetML file are stored in the ISO 8601 format" and give more meaningful guidance on how to deal with dates in formulas. As I mentioned on the WG4 call last week, we've now boiled that intent down into more tangible changes to the standard, which are attached. My apologies for the week of delay in sending this out - Gareth has been busy with his real job so iteration's been somewhat slow. Right now the attached PDF is more my work than Gareth's, so there's some further work required and any thoughts would be much appreciated.

I'm hoping I haven't committed an awful sin on my first WG4 post. After a spot of research, I opted for plain text email and PDF/A.

Chris
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