Hi Laith,

If you are asking how to upload a file to a mendix app, here is some documentation that has a good walk through on how to build that

https://docs.mendix.com/howto/data-models/working-with-images-and-files

If not, can you be more specific on what you are trying to accomplish?

Edit:

If you want to find the files in your local database, you can navigate to your project in file explorer and follow this path

\deployment\data\files

If you want to find a file you uploaded to your application, in your application. Create a page with a datagrid with datasource of the entity you stored your file in. Then you can create a microflow to display the file, or create a page that will display a preview

Thanks Austin,

Ok, in another way, i'm running mendix locally on my device, where i can find my files which i already uploaded?