Hi! I understand you want to access documents and learn about the features related to the Mariner Finance app. To help you better, are you trying to open loan documents, statements, or some other documents within the Mariner Finance app? Also, are you using the app on a mobile device or through a web browser on your Windows 10 computer?

Generally, the Mariner Finance mobile app allows you to monitor account activity, set up autopay, and make payments. You can also access your Customer Account Center, which may include viewing your loan documents and statements digitally. These documents are often in PDF format, so having a PDF reader like Adobe Acrobat Reader will help you open them.

Here’s a simple step-by-step if you are using the app on your device:

1. Open the Mariner Finance app and log in with your credentials.
2. Navigate to the account or loan section where your documents or statements are listed.
3. Select the document you want to open; if it’s a PDF, it should open within the app or prompt you to open it with a compatible reader.
4. If you can’t find the documents, check the Customer Account Center via the app’s menu or on their website.

If you are trying to access documents via a web browser on your Windows 10 system:

1. Visit the Mariner Finance Customer Account Center on their official website.
2. Log in with your user ID and password.
3. Navigate to your account details or documents section.
4. Open or download your documents; ensure you have a PDF reader installed to view them.

Let me know what specific documents or features you want to access, and if you face any issues opening them, I can guide you through the steps based on your device and setup. Are you satisfied with this overview, or is there a particular part you want me to help you with more closely?