font error

[mElshiekh]

I am using windows
in the template file I added
@font-face {font-family: RTLFont; src: url('F:\projs\app_name\app\static\app\fonts\markazi-reg.ttf')}
I get this error Can't open file "C:\Users\user\AppData\Local\Temp\tmpizpstnrs.ttf"
when I go to the file location I find the file but I get an error when I try to open it -> is not a valid font file
but the I can open file in it's original source