# File exists
##  File exists
### Description
The File Exists transforms verifies the existence of a file. The filenames to check are read from pipeline fields.
The transform outputs a boolean flag field, indicating whether a file exists or doesn’t.
| Hop Engine | ✓ |
| ---------- | ------------ |
| Spark | ? |
| Flink | ? |
| Dataflow | ? |
### Options
| Option | Description |
| ---------------------- | ------------------------------------------------------------------------------------------------------------------------- |
| Transform name | Name of the transform; This name has to be unique in a single pipeline |
| Filename field | The input field that will contain the filename at runtime |
| Result fieldname | The name of the field that will contain the boolean flag. |
| Add filename to result | Enable this option if you want to add the filename to the list of filenames that can be used in the next workflow action. |
| Include file type | Include the file type in a field. |
| File type field | The name of the field that will contain the file type as a String: "file", "folder", "imaginary" |
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