If your Mac says that the file is in use

Quit any app that you were using with the file, then empty the Trash.
If that doesn't work, the app might have one or more background processes that are using the file. Restart your Mac, then empty the Trash.
If that doesn't work, you might have a startup item or login item that is using the file. To temporarily prevent such items from opening automatically, start up in safe mode by holding down the Shift key while your Mac starts up. Then empty the Trash and restart your Mac normally.

Oct 25, 2018 Round tripping is when you convert your file from QuickBooks for Mac to QuickBooks for Windows and then back to Mac. For example: Your accountant uses Windows. You convert your Mac file to Windows (using the steps above). You send them your company file so they can make changes. You convert your file back to Mac when they're done. DMG files are very common on the MacOS X platform, used for Disk Images.With Disk Images we mean a full “copy” image of for example a CD, DVD or Harddisk. DMG‘s are typically used to distribute applications. Some times however you’d prefer a ISO or a CDR image instead, for example for users on different platforms, or for offering other ways to burn an image to CD or DVD (if applicable).

If you can't delete the file for other reasons

Mac Dmg Download

Start up from macOS Recovery by holding down Command-R while your Mac starts up.
When the macOS Utilities window appears, select Disk Utility and click Continue.
In Disk Utility, select the disk that contains the file that you want to delete. Then use the First Aid feature of Disk Utility to repair that disk.
Quit Disk Utility, then restart your Mac and empty the Trash.

Dmg To Bin Mac 2018