I am working on a project for Windows 10 UWP App. I have below two problems
1. I have to upload excel sheet containing the data, and store that data into Sq-lite Database.
2. Also I have to read data from database table, and write to excel sheet in rows and column format.
I have searched a lot but could not find any library or helping blog. I would be thankful for any complete guide or sample code. Thanks!!
Just so you know, thx to .Net Standard 2.0 we are able to use the OpenXML SDK! This allows you to create and/or manipulate MS Office documents.
As an example I've blogged about creating Excel files on the fly in Xamarin Forms ( that also can generate an UWP app ) here http://depblog.weblogs.us/2017/10/13/net-standard-2-0-create-microsoft-office-documents-in-xamarin-forms/
The SDK itself is open source https://github.com/OfficeDev/Open-XML-SDK and there is a very large detailed documentation site available too https://msdn.microsoft.com/en-us/library/office/bb448854.aspx
I would suggest you use Syncfusion Essential XlsIO. It does the work for your read/write of excel files (also works with Xamarin and ASP.Net). It has a 30-day free trial but you can get a free community license.