Trimming a Video in Office 365 / SharePoint

Overview

This guide explains how to trim videos stored in Office 365 (OneDrive or SharePoint) using the built-in Microsoft Stream editor. Trimming allows you to remove unwanted sections from the beginning or end of a video without needing to download or re-upload it.

Where Videos Are Stored

• OneDrive: Personal meeting recordings and uploaded videos.

• SharePoint: Channel recordings, departmental meeting recordings, or shared content.

• Both storage options support editing videos directly in Stream (on SharePoint), Microsoft’s integrated video platform.

Steps to Trim a Video

1. Locate the Video File

   • Go to https://portal.office.com.

   • Open OneDrive or SharePoint, depending on where the file is saved.

   • Navigate to the folder containing your video and click the file to open it.

2. Open in Microsoft Stream

   • When the video opens, it will play in the Stream (on SharePoint) player.

   • If prompted, click Open in Stream to access the editing tools.

3. Select Trim Option

   • Click the Trim video button on the toolbar.

   • A timeline will appear with adjustable handles beneath the video.

4. Adjust Start and End Points

   • Drag the left handle to set where the video should start.

   • Drag the right handle to set where the video should end.

   • Use Play to preview your adjustments.

5. Apply and Save

   • Once satisfied, click Apply.

   • The trimmed version replaces the original playback for viewers, but the untrimmed file remains accessible to the owner.

Tips

• You must have edit permissions or be the video owner to trim content.

• Trimming only changes playback; it does not permanently delete parts of the video.

• If the Trim option does not appear, the file may still be processing or is in an unsupported format (only MP4 files can be trimmed).

Troubleshooting