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Re: [tdf-discuss] OOXML ECMA-376, transitionnal and strict

On 26/04/2016 15:09, pasqual milvaques wrote:

The 'transitional' variant of ooxml is specified in Part 4 of ISO/IEC
29500 so it's standard, it's supposed that the features of the
transitional variant ease the transition from older formats, I'm not
sure if there is a plan for making the strict variant the default in MS
Office, in Office 2016 it's not yet

OOXML Transitional is definitely not recognized as a standard, and is
specified in Part 4 of ISO/IEC 29500 exactly because is not a standard
(to make it clear how it differs from the standard). OOXML Transitional
was accepted to ease the transition to the standard, and as such should
have lasted only a few years, while it has been used by Microsoft as the
default OOXML format since forever. In addition, OOXML Transitional is
different for each version of MS Office, and the differences are not
documented (only the first OOXML Transitional was documented).

In addition, OOXML Strict - which is the ONLY accepted standard - is
almost impossible to obtain by normal users, as the process is far from
the usual one, as in order to have an OOXML Strict you must save the
document before performing ANY action (as otherwise the format switches
to OOXML Transitional, which is not a standard).

UK Cabinet Office has clearly documented the reasons why OOXML is not a
standard file format.

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