Weird encoding problem, with 00 added

For some reason, as in picture shown below, my system always adds 00 after each char in the ASCII text file. I can only find this problem when using the binary format view of the text file (e.g. in UltraEdit). If I just open it using Notepad, everything is ok. But this is a huge problem since if I send this file to another system for processing, 开发者_运维问答they complain it is not a valid file due to all of the 00:

Is it because of some system setting?

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That's not an ASCII file. It's a UTF-16 file (at a guess; it seems very likely) - which is what Notepad is detecting, basically.

Either:

• Change how you're producing the file to actually use ASCII (or potentially UTF-8)
• Tell the receiving system to read it as UTF-16