Large files on Windows?

Hello,

Please note: I am not an expert.

On Windows 11 64-bit I have installed the x64 SciTE version for Windows 
created by Troy Simpson and available here 
https://www.ebswift.com/scite-text-editor-installer.html (that is 
https://www.ebswift.com/uploads/7/0/4/0/70403747/scite-5.3.7x64.msi).

When I try to open a file which is large 2,510,747,416 bytes (it is an 
aminoacidic sequence database in fasta format), SciTE warns me that the 
file is larger than the 2,000,000,000 bytes limit set in the properties and 
I am asked if I still want to open it; when I click on "Yes" I wait for a 
while and then the SciTE window fills up with "NUL" texts and the vertical 
scroll bar is at the bottom.
If I move the scroll bar up above a certain point I start seeing the 
correct text I am expecting but then if I scroll back down, at a certain 
point, the "NUL" texts fills the SciTE window again.

I am aware that there are other options to deal with big files of this type 
but, despite this, is there anything that I can do to improve this with 
SciTE?

I have searched this Google group with "file.size.large" and I read also 
the sentence from Neil Hodgson saying "An undocumented file.size.large 
property was added to SciTE that allowed loading files larger than 2GB. 
However, SciTE uses 32-bit integers for file positions so many features 
wouldn’t work past the 2GB point" but I am not able to say with certainty 
if there is something that can be done for my case.

On my SciTEGlobal.properties file I currently have:
file.size.large=1000000
file.size.no.styles=1000000 
#idle.styling=1 (uncommenting it didn't change what I reported above nor 
did it have an effect on the speed of scrolling up and down in such a big 
file like mine)

Thank you

Best Regards

Nedo

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