Introduction

Overview / Layout

Panels

FileSystem

File Operations

Extensions

Tools

Customization and Configuration

Configuring the Layout

User Commands and Scripting

Other

API

Troubleshooting

FAQ (pages to follow)

Index

Base 64 - Encoding and Decoding

The Encoding and Decoding commands are found under the Tools menu.
There are commands to encode or decode all the selected files into/from BASE64 format.

Encoding a file into base64 format is done if you want to convert a binary file into a format that is text-friendly. Base64 encoded files grow about 25-50% in size compared to their binary format.
Decoding a base64 file will turn the file back into its original form.

Read more about base64 at wikipedia here.