@Awesomeperson246 The Chrome icon means that Windows is set to open .package files with Chrome by default, as when you double-click one of the files. But this doesn't damage custom content on its own. Actually opening the files with Chrome, or trying to, would damage them to the point where the game wouldn't be able to use them though.
If your browser is in fact opening the files rather than just saving them, that could be the issue. When downloading, be sure to chose "Save file" rather than "Open." If you don't get that prompt, use a different browser.
If this isn't the issue, please take a screenshot of the contents of the Mods folder where you've placed the custom content, and make sure the file path (above the list of files and folders) is showing too.
