The r5apex.exe binary on disk is encrypted and must be dumped from memory first.
Simply run apexbot, if its offsets are not correct it'll dump the game for you instead. You'll find an r5apex.bin file in the current directory.
Drop the dumped executable in the file input below and the script on this page analyzes it for you returning offsets and other goodies.
This can take a while, do not stop this page! Give it a minute to crunch the binary...