I have a script that does that but it is not very user-friendly. It is a command-line script that runs under cygwin. If you have a local astrometry.net installation, you could use that cygwin instance to run it. It reads one or more sg log files and creates CSV output which you can then paste into excel.
$ ./sg_log_get_focus_pos sg_logfile_20160204185916.txt 2/4/2016 7:11:05 PM,Lum,5.23,8030,0.59 2/4/2016 8:45:50 PM,Lum,5.36,8000,0.60 2/4/2016 10:21:35 PM,Lum,4.48,7965,0.65 2/4/2016 11:34:31 PM,Lum,3.40,7959,0.63 2/4/2016 11:46:42 PM,Lum,2.72,7955,0.62 2/5/2016 12:24:56 AM,Lum,3.11,7949,0.63 2/5/2016 12:37:15 AM,Lum,2.70,7941,0.56 2/5/2016 1:17:37 AM,Lum,1.24,7940,0.58 2/5/2016 1:52:59 AM,Lum,0.69,7941,0.62 2/5/2016 2:17:46 AM,Lum,1.29,7941,0.65 2/5/2016 3:49:28 AM,Lum,0.75,7928,0.71 2/5/2016 4:35:38 AM,Lum,1.22,7926,0.61
The columns are: date-time, filter name, temperature, focus pos, HFR.
Here’s the script if you want it. http://adgsoftware.com/misc/sg_log_get_focus_pos
Sorry, this is not very useful unless you are prepared to run a command in a cygwin shell, but throwing it out there anyway. If I get some free time I will try to put together a more user-friendly version of this, perhaps a web-based thing.