Note that Snapchat seems to only save the data of the 30 last days. Furthermore, snaps and messages are deleted when opened so all you get is a json that looks like this:
{
"Received Snap History": [
{
"From": "user1",
"Media Type": "IMAGE",
"Created": "2018-08-09 14:40:38 UTC"
},
{
"From": "user2",
"Media Type": "IMAGE",
"Created": "2018-08-09 14:40:14 UTC"
}
],
"Sent Snap History": [
{
"To": "user1",
"Media Type": "IMAGE",
"Created": "2018-08-09 14:45:43 UTC"
},
{
"To": "user2",
"Media Type": "IMAGE",
"Created": "2018-08-09 14:45:27 UTC"
}
]
}