Technically "opening" a file does not involve reading it into memory
at all, so any limits would arise from the OS.
As for "reading" the file, the amount of virtual memory [1] is the key
factor, but different file formats can require more or less overhead memory to
parse the data. Also, different functions may utilize available memory more or
less efficiently, so your mileage may vary depending on what base or contributed
functions you use to read the data.
[1] Virtual memory is a very OS-specific thing... but if you depend on it very
much your performance will suffer considerably.
On June 5, 2019 2:38:29 PM PDT, Ricardo Lopez <gudiel.adv92 at gmail.com>
wrote:>Hello, I?d like to ask you if the max size of a file that R can open
>or
>import to work depends of the memory RAM?? or has other restriction???
>
>Thank you very much
>
> [[alternative HTML version deleted]]
>
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Sent from my phone. Please excuse my brevity.