Not able to gunzip a .gz file, in ksh

i am working on unix - ksh

trying to unzip a .gz file

and when i executed the below, in my command prompt in ksh

gunzip abc.gz

it was throwing the message below:

gunzip: abc.gz: unexpected end of file -

pls advise what is the reason for it..i am pretty sure the .gz file had no issues.

So is the name of filename is like

file.tar.gz

or simply

.gz

it is just .gz, thats why had to use gunzip

but not sure,why it throws the error

Try these links

linux - Unexpected end of file. Gzip compressed file - Super User