You can export a log to a csv file by navigating to the log list view and clicking the Export button next to the log you wish to export.
Exporting a Log File
To import a CSV log file, open the Operation Logs menu in the sidebar and click Import Oplog Entries:
Log Import Option in the Sidebar
Drag and drop your csv file or click the Browse button to select it. Once the file is selected, click on the green Upload button. You will be redirected to the log list page if successful. Otherwise, an error will be displayed indicating what went wrong during the import.