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by kube-system
1521 days ago
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There is nothing about proprietary licensed software that requires it to use proprietary data formats. There also exists FOSS software using esoteric formats. You can, and probably should, know how software is going to store your data before you use it, no matter what license it has. |
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The point is: a locked proprietary format is in the interest of proprietary software vendors. It benefits the vendor but hurts the user.
The vendor can even make something document well enough to be used by governments but closed enough to be impractical to be freely implementable. See ms office formats.