You have a filter that shows certain results. As a example, this filter shows computers with certain Disk Space.
Now, you want to create a Report that returns the same results based from your desired Filter.
ITMS 8.x
Main steps to follow (under the Optional steps):
Modifying an Existing Filter in ITMS Management Views (broadcom.com)
If there is a specific "Filter" that you want, and what you want is to have a report that reports the same results as the filter, then there is not a direct way to "convert" a filter as a report if you are under Manage > Filters (we only have "Save as: spreadsheet or HTML file)
However, if you go to Manage > Computers, and you look for the same Filter, you should have the option to "View filter results report" and then from the opening window, you can save it as a report.
As well, in that same window, you can select other columns and add them to the results in case they want to add even more details to the results and then save it as a report
Besides what I mentioned above, there is no other way by default that we can provide without going in customization or writing the report for you (Support team doesn't assist with customization or writing reports besides providing some guidance of possible tables that you may want to consider).