Out of memory

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.5

Error message:
Out of memory

I Have just opened a huge file and got this error

Thanks for your report.

This issue is being tracked already:
https://winscp.net/tracker/1120