# Business .Manager File Won't Open on Either Mac or Windows Computers **URL:** \ **Category:** Uncategorized\ **Created:** [August 23, 2024, 9:02am UTC](https://forum.manager.io/t/business-manager-file-wont-open-on-either-mac-or-windows-computers/55704 "2024-08-23T09:02:08Z")\ **Posts on this page:** 1\ **Showing post:** 5
**Author:** ![Manager\_User](https://avatars.discourse-cdn.com/v4/letter/m/2acd7d/32.png) [@Manager\_User](https://forum.manager.io/u/Manager_User)\ **Post date:** [August 23, 2024, 2:12pm UTC](https://forum.manager.io/t/business-manager-file-wont-open-on-either-mac-or-windows-computers/55704/5 "2024-08-23T14:12:03Z")
@eko He said that he tried to open it from the cloud. While you are thinking the cloud version of manager. I think he means he keeps some files on the cloud for his team, to open on the desktop or server versions of manager. @NEC Here is somethings I found that may apply to you. > [@Database disk image is malformed](https://forum.manager.io/t/database-disk-image-is-malformed/55153/6): > > But if you mean cloud storage or local storage connected to the cloud, the possibility of corruption will be very large due to data synchronization failure. > [@Backup file size not reduced after deleting all attachments](https://forum.manager.io/t/backup-file-size-not-reduced-after-deleting-all-attachments/53767/6): > > This means your database cannot be rebuilt because it’s corrupted. > > Database can be still rebuilt using SQLite command line tool. > > [https://stackoverflow.com/questions/18259692/how-to-recover-a-corrupt-sqlite3-database/57872238#57872238](https://stackoverflow.com/questions/18259692/how-to-recover-a-corrupt-sqlite3-database/57872238#57872238) I also suggest that you make 3 copies of your business file from now on. And store one on your computer, one on a jump drive & and the last on a external hard drive. --- _[View the full topic](https://forum.manager.io/t/business-manager-file-wont-open-on-either-mac-or-windows-computers/55704)._