You can easily figure it out yourself. Open the ae_data.xml file in an editor; would be good when it has line numbering (e.g.
jEdit).
You only have to look in which line your value is placed and where to start reading and also how many characters should be read.
$part:
14:
4:$linefromfile:C:\ae_data.xml:
5§§C
Placing cursor to position X
This number declares where to place the cursor within the XML file. The cursor will start on the left side and will jump 14 characters to the right.
Read in the next X characters
This number declares how many characters will be read from the file. The current position of the cursor is the startpoint. Here it means to read the next 4 characters.
Jump to line X
This number declares in which line the cursor will be placed. Here it means line 5 with the first temperature value.