You've been very kind in your efforts to help. Thanks for that.

Thanks for the additional info - I did check the file, the first two bytes are as advertised. Problem occurred in the file when I was zipping it using AbaleZip code - accidentally had a global variabl ...

Hello! my zip file doesn't want to open because its the file header is damaged. that is the name of the file is zero. now none of the archiver is unable to open it as there is no "file Name" ...