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dataframe/docs/StardustDocs/topics/dataSources/CSV-TSV.md

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+# CSV / TSV
+
+<web-summary>
+Work with CSV and TSV files — read, analyze, and export tabular data using Kotlin DataFrame.
+</web-summary>
+
+<card-summary>
+Seamlessly load and write CSV or TSV files in Kotlin — perfect for common tabular data workflows.
+</card-summary>
+
+<link-summary>
+Kotlin DataFrame support for reading and writing CSV and TSV files with simple, type-safe APIs.
+</link-summary>
+
+
+Kotlin DataFrame supports reading from and writing to CSV and TSV files.
+
+Requires the [`dataframe-csv` module](Modules.md#dataframe-csv), 
+which is included by default in the general [`dataframe`](Modules.md#dataframe-general) 
+artifact and in [`%use dataframe`](SetupKotlinNotebook.md#integrate-kotlin-dataframe) for Kotlin Notebook.
+
+## Read
+
+You can read a [`DataFrame`](DataFrame.md) from a CSV or TSV file (via a file path or URL) 
+using the [`readCsv()`](read.md#read-from-csv) or `readTsv()` methods:
+
+```kotlin
+val df = DataFrame.readCsv("example.csv")
+```
+
+```kotlin
+val df = DataFrame.readCsv("https://kotlin.github.io/dataframe/resources/example.csv")
+```
+
+## Write
+
+You can write a [`DataFrame`](DataFrame.md) to a CSV file using the [`writeCsv()`](write.md#writing-to-csv) method:
+
+```kotlin
+df.writeCsv("example.csv")
+```
+
+## Deephaven CSV
+
+The [`dataframe-csv`](Modules.md#dataframe-csv) module uses the high-performance
+[Deephaven CSV library](https://github.com/deephaven/deephaven-csv) under the hood
+for fast and efficient CSV reading and writing.
+
+If you're working with large CSV files, you can adjust the parser manually
+by [configuring Deephaven-specific parameters](https://kotlin.github.io/dataframe/read.html#unlocking-deephaven-csv-features)
+to get the best performance for your use case.
+