# Data Source Configuration Files

> Save a database connection, master table and relations as an .rdsc file in the Reporting tab and merge it with ReportDataSourceConfigFile and Merge().

- **Product:** TX Text Control .NET for Windows Forms
- **Section:** Documentation
- **Kind:** Topic
- **Path:** TX Text Control .NET for Windows Forms > Mail Merge and Reporting > Data Sources > Data Source Configuration Files
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/mail-merge/data-sources/configuration-files/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/mail-merge/data-sources/configuration-files/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/mail-merge/data-sources/configuration-files/llms-full.txt

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## On This Page

- [What a Configuration File Contains](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/mail-merge/data-sources/configuration-files/#what-a-configuration-file-contains)
- [Create a Configuration File in the Reporting Tab](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/mail-merge/data-sources/configuration-files/#create-a-configuration-file-in-the-reporting-tab)
- [Save and Load Configurations in Code](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/mail-merge/data-sources/configuration-files/#save-and-load-configurations-in-code)
- [Merge a Template With a Configuration File](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/mail-merge/data-sources/configuration-files/#merge-a-template-with-a-configuration-file)
- [Save an Excerpt of the Database](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/mail-merge/data-sources/configuration-files/#save-an-excerpt-of-the-database)
- [Next Steps](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/mail-merge/data-sources/configuration-files/#next-steps)

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## Nearby

- **Previous:** [JSON and XML](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/mail-merge/data-sources/json-xml/llms.txt)
- **Next:** [Merge Fields](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/mail-merge/fields/llms.txt)