This is designed to be a simple set of questions and answers - please no general chit chat in here - keep it focused to help new users!
- Either a .o format file or a .80 file (both are the same, just different file extensions)
- Either a .p format file or a .81 file (both are the same, just different file extensions)
These files can be converted to a .wav file on the PC and then played through the PC's sound card, which you can connect to your ZX80/ZX81 as though it were a tape recorder.
The program to convert the files to a .wav file is called simply:
The ZXpand also includes a host of other features - see www.rwapsoftware.co.uk/zx812.html for details (including the manual).
The PlayTZX for MAC -
ftp://ftp.worldofspectrum.org/pub/sincl ... 12b.tar.gz
There are several Windows versions, at least one of which will also play .p files, but not sure on the MAC version.
You could also try the Java based ZX81 Tape Convertor:
http://www.zx81stuff.org.uk/zx81/tapeut ... rview.html
Thanks - I have uploaded another version and attached it to the original post