I am getting the below error when i tried to open the .tst file.
Soatest is unable to read the fil *** due to the following error.
java.io.IOException: com.ctc.wstx.exec.WstxlOException: Unexpected end of ZLIB input stream
It looks like that tst file is corrupted. Check if you have another copy or backup copy.
By default, SOAtest creates a backup copy of your .tst file before saving any new changes. Look for a ".tst.bak" file next to your existing ".tst" file. This can be helpful in case something were to go wrong, like if the save operation was forcibly interrupted which can result in a corrupted or partially written .tst file.