getting offset in file from RVA

Question

I'm trying to read a PE file.
The problems is that the data uses RVA pointers while I need offset within the file
to get what I need. How can I convert the RVA to offset in the file?

Answer 1

To determine the file offset by RVA, you need:

1. to determine in which section points RVA.
2. subtract from your address relative virtual address of section
3. add to result the file offset of section

You will receive a file offset that you need.