Help doubt editing .dat files

[jadoreeh]

I want to edit some dat files at the client level, I'm learning little by little. Some time ago, around 2015, I edited the skills, effects and icons with the "fileeditor" program, but now I have to do it with L2ClientDat, to my surprise when I open the file it looks like this:

 

 

 

I don't know what the "StrID:" variable means, previously it appeared as "icon.icon name", can anyone help me decipher how this variable works? sorry for the text, but it was translated with a translator

Edited July 21 by jadoreeh

[eMommy]

it is referencing l2gamedataname dat