Delete files from steam cloud

I want to delete certain files inside Steam cloud save for a certain game

SteamuserdataSteamIDAppID

I have no problem to change any file. This is as easy as starting game, changing file and then exiting game (replacing game exe-file if game is agreessively overrides files upon exit).

But for a quite some time, when I try to use same method to delete any file – it will just reappear, either on exiting game or just before it’s started.

Now I’ve run into a weird problem where for some reasons my save files contains folder which contains underscore _ in front and this kind of breaks the game: I can’t create character with same name. So I would really like to find a solution. Below are my thoughts/attempts.

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1. How to delete single file from Steam cloud?

I’ve tried for a few hours to apply solutions found using the google (e.g. this one): disabling/enabling clouds, deleting files at various moments, deleting/editing remotecache.vdf of corresponding game with or w/o Steam running, etc. etc.

The deleted files just reappear.

Yet during my tries I’ve never seen Cloud Sync Conflict Steam dialog and honestly I don’t even remember when I saw it last time.

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2. How to force Cloud Sync Conflict dialog?

I’ve read that with that dialog I can choose option to take local files as they are, not sure if it will work for deleted files, but I’d like to try it.

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3. How to directly browse my Steam cloud saves files (not synced content on my PC)?

In theory there could be third party tool or web-site to manually edit content. Potentially there will be the option to delete file.