🛠️ Change Binary MimeType/Extension

How it works This workflow changes the file name, and therefore the extension and MIME type, of any binary file passed to it. This is perfect for converting file formats on the fly, like turning a Telegram voice message (.oga) into an MP3 for an AI transcription service. Set New File Name: The SET OUTPUT FILE NAME node is where you define the desired output file name and extension (e.g., audio.mp3). It also dynamically captures the property name of the incoming binary (e.g., data). Extract Binary Data: The workflow temporarily converts the binary file into a Base64 text string to make it accessible in the next step. Rebuild Binary with New Name: A Code node takes the Base64 data and reconstr

Help me set up the n8n workflow "🛠️ Change Binary MimeType/Extension" (https://n8n.io/workflows/5155). It uses: Code. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.