I had to deal with that a little at my day job, writing some code for reading one of the fields in a file format that had originated on the VAX. The specification document for the file format didn't mention any details about byte ordering for any of the fields, just data type and length in bytes.

So i have been reading many books since the last time I logged in and burning the midnight oil staying up late to trying and work this out. i turned over to the " an introduction to microcomputers volume 0"
which has a section about binary, and binary numbering system. , Now i have to stress maths is not my strong point and i have struggled a lot through out the years and reading this book is no exception when i read through out the book , i get a conflict with what i have learnt through cisco network training in the past to this is due to me knowing that there is 8 bits to a byte - & 255 is the max that can sit within a byte of data. and the 1-128 numbering system for binary , the book uses words that i do not normally use , such as "base x base" , "increment" , "digit" or "increment a digit to one less then the number base "

this may all sound like normal words. its terminology that is getting me , today i watched a video on YouTube and it was almost on par with the page i was on. and then it clicked regarding "base x base" the term which was used is to the power of so 0^2 = 1 , 2^1=2 , 2^2=4 2^3=8 etc it was incrementing the decimal location 1,2 3 etc!! (mind blown)

then there was a section on " MSB or LSB " which was used on sums which where had remainders in the sum for example: 75/2=35.5 & the .5 would the remainder which would be a 1 on binary. I wasn't sure that piece was relevant but it might be handy to know in the future or might shine a light on something else I don't understand.

back to the book , then i read the part with in the book which mentioned about high order bytes & low order bytes i understand this depending on what way the sum is written out from left to >>> right. the usual way to read then the that would be classes "high to low" , if it was backwards then "low to high"

i am still reading the book over and over again. i really thought i had it at 2am this morning.

am i close?

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x86?  We ain't got no x86.  We don't NEED no stinking x86!

https://en.wikipedia.org/wiki/Zero_to_the_power_of_zero
Grumpy much?

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Got a kilobyte lying fallow in your 65xx's memory map? Sprinkle some VTL02C on it and see how it grows on you!

Mike B. (about me) (learning how to github)

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x86?  We ain't got no x86.  We don't NEED no stinking x86!

Do you want some cheese with that whine ?! , dude have a cry else where , i am well aware of my limitations , and i am aware that my maths skills are not great but i am getting there slowly. , and you know what that link out you sent me was for a apple and it wasn't relevant to me i am learning for the c64 , as the same ML works on the 6510! and i did REREAD your exsplaintions and it DIDN'T MAKE SENSE!!!

Just take things at your own pace, and please don't get the feeling that you're unwelcome. We know that you're here to learn, not cheat on your homework. I have known some very sharp people who unexpectedly encounter difficulties on certain types of subject matter that may seem obvious to most.

Most of us here aren't real teachers, so the resulting environment might not be the most conducive to learning, but I'd like to think that our hearts are in the right place, even if our manners may not always be. Patience, a healthy sense of humor and a thick skin are your best defenses. Maybe break the tension by tossing an "OK, boomer" back at someone once in awhile ... (I'm a couple years too young to be an official boomer, but there are plenty here).

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Got a kilobyte lying fallow in your 65xx's memory map? Sprinkle some VTL02C on it and see how it grows on you!

Mike B. (about me) (learning how to github)

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x86?  We ain't got no x86.  We don't NEED no stinking x86!

I think the thing to do here, BDD, if you feel you can't help, is not to try. Leave the thread to those who do wish to try.