Can’t extract backup from zip

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5.00/5 (1 vote)

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I created a backup of a portion of my hard disk which amounted to 11MB. I want to restore this backup but when I double click the file it says : Cannot open file : It does not appear to be a valid archive.

What I have tried:

Is there still a way to recover this file? One of my hunch is that this file was made with a lower version of winzip than the one I am using now. Is winzip backward
compatible? Could the newer versions open files made from older versions?
Is it possible to know what winzip version a file was made from?

Posted 14-Jul-16 6:03am

Member 12619922

Updated 20-Jul-16 7:26am

Patrice T

v2

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Patrice T · Answer 1 · 2016-07-14T06:24:00

Solution 1

Quote:
Is winzip backward compatible?

It should.
Try another zipper to see if better luck with it.
7-Zip[^]

Otherwise, I would open the zip in a programmer editor (binary mode) just to see if the zip headers are here or not.
UltraEdit: the text editor trusted by millions[^]

Posted 14-Jul-16 6:24am

Patrice T

Comments

[no name] 14-Jul-16 13:00pm

+5, especially to bring UltraEdit in my mind :)

Patrice T 14-Jul-16 13:03pm

Thank you :)