PennController for IBEX › Forums › Support › Preload Zip and Invalid URL › Reply To: Preload Zip and Invalid URL
May 21, 2020 at 10:43 am
#5288
![](https://www.pcibex.net/wp-content/uploads/2018/10/IMG_8365-e1540835663655-150x150.jpg)
Keymaster
Hi Nickolas,
You can only preload ZIP archives, whose filenames should end with .zip. You can try changing the extension of your RAR file, but if the compression algorithm was different, chances are PennController won’t be able to read it.
Jeremy