File-Extensions.org forum

Posted: **February 21, 2014, 3:02 pm**

My computer keeps bugging me about some *.sdtid file ? Any idea what it is ?

Posted: **March 28, 2014, 1:04 pm**

Hi Hugo, They are some kind of security certificates, more info http://www.file-extensions.org/sdtid-file-extension

sdtid