What is .OP file extension?
Report created by OpenPAT (Open Performance Analysis Toolkit) tools, a cross-platform program analysis toolkit that helps identify hotspots, bottlenecks, buffer overflows, and other data and control flow information; contains a report of an instrumented program to show an analysis to the user; stores information, depending on the tool it's generated from, such as hotspot, coverage, or control_flow.
The OP file will be named after the tool it created the report on, e.g., the hotspot tool creates the hotspot.op file.
To locate the tools in your OpenPAT folder you downloaded, select "tools," then "core."
You can see a list of software programs here on www.easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.