2d array to cluster array How do I insert a 2d string array into a cluster array?

[altenbach]

Does the file really need to be readable by humans? It would seem simpler to use a plain binary file for all this.

[altenbach]

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@altenbach wrote:

It would seem simpler to use a plain binary file for all this.

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Here's one possible way how to use a binary file instead. Less code! (see my signature ;)) 😄