view (usually located at the bottom of the screen). If you do not see it, go to Window > Show View... > Talend > Modules csv100.jar

Locate the missing talendcsv library, right-click, and select .

The talendcsv-1.0.0.jar (often referred to as csv100.jar ) is a for Talend Studio used by components like tFileInputDelimited .

Open your job design workspace. Click on the code tab at the bottom to view the raw Java compilation errors. Check the exact import path Talend is requesting. Ensure that the version of the JAR you downloaded perfectly matches the version string defined in the component's XML descriptors. Java Compilation / ClassNotFoundException

Avoid downloading .zip or .exe files from unverified third-party blogs. Step-by-Step Installation Guide

If you have the JAR but still see errors, your local cache might be corrupted:

If you have access to an older version of Talend Open Studio (e.g., v5.x or v6.x), the file is already on your machine. Navigate to your old Talend installation directory.

Talend will now recognize this library for use in components like tJava , tLibraryLoad , or custom tJavaFlex components. At the start of your job, add a tLibraryLoad component. Select the csv100jar from the library list.

Read CSV file using Talend Open Studio | tFileInputDelimited