json decoding error

[Axel_Erfurt]

try this

import json
import datetime
import pandas as pd
list=[]

# combine json
files=['1.json', '2.json', '3.json', '4.json', '5.json']

result = []
for f in files:
    with open(f, "r") as infile:
        result.append(json.load(infile))

with open("12.json", "w") as outfile:
    json.dump(result, outfile)


# make xlsx
with open("12.json", encoding="UTF-8") as f:
    jsondata = json.load(f)
    
for data in jsondata:
    if "items" in data:
        for matches in data["items"]:
            if "Alternative" in matches["champName"]:
                continue
            list.append([matches["champName"],datetime.datetime.fromtimestamp(matches["dateStart"]),matches["opp1"],matches["opp2"],matches["score"]])
df=pd.DataFrame(list)
df.to_excel("output.xlsx")
print("Saved.")