"MyChat Client (Windows)", "Console commands (under construction)", "Internal commands", "Records".
Open the Explorer with the folder that contains records of voice and video calls of MyChat Client user's personal profile.
Records
Windows Explorer opens a folder with records.
%USERPROFILE%\MyChat Client\logs\records\
If the last folder located on the path where your MyChat Client installed is not regular (for example, you installed the program in D:\Work\Messengers\MC\), then your profile will be in "%USERPROFILE%\MC\".
Files are stored in a chronological order. The example of the file's name:
6_5454.2021.4.2.15.24.webm
Read the name as: "a user with UIN 6 called a user UIN 5454, April 2, 2021, 15:24".