Is there any way to convert .tf file into .tch file?

I need *.tch file for creating RC corner in tsmc180 technology file. But they provide me with .tf file ? 
Is there any way to convert it ? 
If not, what format of file I should search for which could be used instead of *.tch file.

FYI: I tried to use .tf file instead of .tch file which is causing error. So I'm guessing  wrong format is the reason behind this.