.bak 扩展名为 MS SQL Server数据库备份。 SQLite和MS SQL之间存在很大差异。

所以你可以做的是，尝试在MS SQL数据库中提取该文件，将该记录导出到某个文件即Excel文件。 / BLOCKQUOTE>

Hi all,

I need to get data from system to my app in mobile using bluetooth. i get .bak to my device then how to restore that file into sqlite database or access that one

.bak extension is for MS SQL Server Database backup. And there's a hell lot of difference between SQLite ans MS SQL.
So instead what you can do is, try to extract that file in MS SQL database, export that records to some file i.e Excel file.