A schema is used to define the structure of data. You can use a schema to parse the fetched data. If you want data transformation, then you need to use the required schemas both after the source and before the target end of your process flow activities. Perform the following steps to create a source schema activity.

Go to Develop > Services > Schema, and then click the required source format, for example, Excel.
Click Create New.
On the Create Excel Schema window, provide the details of the schema.
Click Save.

For more information, refer to Creating Schema Activity.

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