The Android Apps Bundle (AAB) Files can come in a compressed format like XAPK, APKS, APKM, or AAB. While app bundles help save storage space and data usage, they are not one-size-fits APK files. The app bundles only include the components that your specific device needs, organized into split APKs. While the regular apps contain all necessary resources like screen size, manifest, XML, Config, and architecture in a single APK. Google introduced a new way to distribute Android apps called app bundles. If it is a bundle, then you need to install it using a Split Installer. Make sure the File is Not Split into APK App Bundle. If the APK file is Split into App bundles, ‘ App Not Installed‘, is the error you will face if you try installing APK.
Uninstall the similar pre-installed app and install the modified App from APK Editor.