...
- Logging - by default "Debug Mode" is disabled. Its role is to collect more data for a log file in case of usage problems - after enabling it you can expect to obtain log file at: C:\Users\%username%\AppData\Local\Transition Technologies S.A\Excel Connector;
- Timeout - 180 seconds is set as a default value to wait for Jira response
- Time Format - "User friendly" mode is set by default. To change value to show it in seconds, please chose the latter option. When the latter option is enabled, you ought to get similar results, converter from e.g. weeks into seconds after clicking "Get Issues" (or after refreshing):
vs user friendly display mode - in days and hours 
("remaining estimate' and "time spent" data were taken into consideration on below and above images' columns)
vs user friendly display mode - in days and hours:
