Question:
Its safe to delete .prd files and non prd files which was stored under C:\Program Files\FlexNet Operations\release\flexnet-data\data\prd folder
Answer:
Yes, its safe to delete all the files under C:\Program Files\FlexNet Operations\release\flexnet-data\data\prd folder unless if we don't want for diagnostic/debugging perpus (better to keep last 30days files)
The name of the PRD file will be <activationId>-<system timestamp>.prd and The name of the command file will be <activationId>-<system timestamp> ( without any extension ).
For example:
Worth reading more information about prd files and how to disable prd files then click here
