The PGN standard doesn't support multiple games. What you have is some custom PGN+ format, so it will not be able to load into chess.com, or most analysis software.
Multiple Games in a Single PGN
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Jan 28, 2023
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That's a PGN database, i.e. multiple games separated by a space. You can import that into the Library page, as long as it's 100 games or less. (If it's more, then break it into separate files.) You can work with PGN databases for free with programs like Scid, so for instance you could use that to make separate databases of 100 games each to import, if you wanted to do it that way. When you're in the Library section, if you go to analyze one of the games in a library, you will see a drop-down list of the others.
I have a PGN file which has multiple games, when I try to upload the PGN file at Chess Analysis Board and PGN Editor - Chess.com it just opens up the first game but not entire games.
Please Help !