Published at LXer:

If you define the problem as “A product 100% binary, bug for bug, compatible with Excel that releases new versions at the same time as Excel” you kinda stop even the hope of migrating someday in the future, because that ain’t possible.— jmorris2 on LWN’s “A think tank’s view of free software”Proprietary software companies such as Microsoft have their own source code and they have unencumbered access to read any free software source code they wish—without incurring any legal obligation to distribute their source code. If they truly wanted interoperability, they could pursue it anytime.

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