How to make them human readable
By default, the files downloaded from FieldNet are in a .vri file, which is not human readable. These files are zipped, but running a simple command to unzip them will not work. The first byte of the file is not correct for a standard unzipping utility such as the unzip command on a unix system. The file header for a zip file is supposed to be PK\x03\x04
, and the file header for the .vri file is RK\x03\x04
. To fix this and allow your system to unzip the file, you have to change the first byte. To do this in your terminal (tested on macOS):
echo -ne P | dd conv=notrunc bs=1 count=1 of=filename.vri