WAL_archive folder around 100 GB

WAL_archive folder around 100 GB

Hi,
Under ManageEngine > ServiceDesk > pgsql > data > wal_archive folder is around 100 GB size. 
I have already read this post here. When i compared the contents of the existing archive.bat file and the one downloaded from the post i found it to be same. 
I just want to clarify if it is ok to perform the steps mentioned in the post in this scenario.

Regards
Rayeez 

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