--- title: "Previewing Files" slug: "previewing-files-1" tags: ["Portal", "8.3"] updated: 2026-04-19T14:36:09Z published: 2026-04-19T14:36:09Z canonical: "kb.ctera.com/previewing-files-1" --- > ## Documentation Index > Fetch the complete documentation index at: https://kb.ctera.com/llms.txt > Use this file to discover all available pages before exploring further. # Previewing Files If previewing a file is available, click on the file to view it in the online viewer. ![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-7BJB85P1.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A33%3A28Z&se=2026-11-11T05%3A33%3A28Z&sr=c&sp=r&sig=1sNCH4U3TAKnpxWy3WBAANGJWcKABBOjPs6DMnDfCGo%3D) **Note** If the file is a Microsoft Excel, PowerPoint or Word file, and Microsoft 365 has been set up by the CTERA Portal administrator, the default is to enable viewing using Microsoft 365. After opening the file to view it, you can also edit it. For more details, see [Editing a Microsoft Office File](/v1/docs/editing-a-microsoft-office-file-1). The following list of icons changes dependent on what actions you can perform on the preview file: ![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-CJOYSJHY.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A33%3A28Z&se=2026-11-11T05%3A33%3A28Z&sr=c&sp=r&sig=1sNCH4U3TAKnpxWy3WBAANGJWcKABBOjPs6DMnDfCGo%3D) – Search within the file. ![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-YXFQS40I.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A33%3A28Z&se=2026-11-11T05%3A33%3A28Z&sr=c&sp=r&sig=1sNCH4U3TAKnpxWy3WBAANGJWcKABBOjPs6DMnDfCGo%3D) – Pan within the file. ![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-ND0MOB34.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A33%3A28Z&se=2026-11-11T05%3A33%3A28Z&sr=c&sp=r&sig=1sNCH4U3TAKnpxWy3WBAANGJWcKABBOjPs6DMnDfCGo%3D) – Select text within the file. ![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-SJYSHRV4.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A33%3A28Z&se=2026-11-11T05%3A33%3A28Z&sr=c&sp=r&sig=1sNCH4U3TAKnpxWy3WBAANGJWcKABBOjPs6DMnDfCGo%3D) – Rotate the file 90 degrees clockwise. ![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-BNT0P08X.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A33%3A28Z&se=2026-11-11T05%3A33%3A28Z&sr=c&sp=r&sig=1sNCH4U3TAKnpxWy3WBAANGJWcKABBOjPs6DMnDfCGo%3D) – Magnify a part of the file. Move the cursor to the part to magnify and press the left mouse button. ![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-OJEKC19V.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A33%3A28Z&se=2026-11-11T05%3A33%3A28Z&sr=c&sp=r&sig=1sNCH4U3TAKnpxWy3WBAANGJWcKABBOjPs6DMnDfCGo%3D) – Select a part of the document to zoom in on. ![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-5YCQH19S.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A33%3A28Z&se=2026-11-11T05%3A33%3A28Z&sr=c&sp=r&sig=1sNCH4U3TAKnpxWy3WBAANGJWcKABBOjPs6DMnDfCGo%3D) – Resize the content to fit the display size. ![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-UO9KCX47.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A33%3A28Z&se=2026-11-11T05%3A33%3A28Z&sr=c&sp=r&sig=1sNCH4U3TAKnpxWy3WBAANGJWcKABBOjPs6DMnDfCGo%3D) – Zoom in. ![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-BLT5A0ES.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A33%3A28Z&se=2026-11-11T05%3A33%3A28Z&sr=c&sp=r&sig=1sNCH4U3TAKnpxWy3WBAANGJWcKABBOjPs6DMnDfCGo%3D) – Zoom out. ![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-WY08B2HP.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A33%3A28Z&se=2026-11-11T05%3A33%3A28Z&sr=c&sp=r&sig=1sNCH4U3TAKnpxWy3WBAANGJWcKABBOjPs6DMnDfCGo%3D) – Print the file. ![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-IO45CJ34.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A33%3A28Z&se=2026-11-11T05%3A33%3A28Z&sr=c&sp=r&sig=1sNCH4U3TAKnpxWy3WBAANGJWcKABBOjPs6DMnDfCGo%3D) – Download the file. ![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-OBOVEVAC.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A33%3A28Z&se=2026-11-11T05%3A33%3A28Z&sr=c&sp=r&sig=1sNCH4U3TAKnpxWy3WBAANGJWcKABBOjPs6DMnDfCGo%3D) – Edit the file, when Microsoft 365 is available. See [Editing a Microsoft Office File](/v1/docs/editing-a-microsoft-office-file-1). An extensive list of file types is supported. If online viewing is not supported for your file type, CTERA Portal will offer to download it instead. **Note** This option is only available if the CTERA Portal setup includes an online preview server, otherwise the option to download the file is displayed. ![image.png](https://cdn.document360.io/30792387-cdcb-4791-aa14-94929bbcd3fe/Images/Documentation/image-XXY0AKEK.png?sv=2026-02-06&spr=https&st=2026-11-11T04%3A33%3A28Z&se=2026-11-11T05%3A33%3A28Z&sr=c&sp=r&sig=1sNCH4U3TAKnpxWy3WBAANGJWcKABBOjPs6DMnDfCGo%3D) The following file types are supported (note that the Microsoft file types might be handled as described in [Editing a Microsoft Office File](/v1/docs/editing-a-microsoft-office-file-1): **Document** – DOC, DOCX, XLS, XLSX, PPT, PPTX, RTF, CSV, PDF, ODT, ODS, ODP, and many older document formats **Web** – HTML, SVG **Image** – TIFF, JPG, JPEG, JP2, GIF, PNG, RAS, CAL, MIL, DIB, BMP, PSD, PCT, PCX, DCX, PCD, WMF, EMF, TGA, and many more image formats **Medical Image Files** – DICOM, DCM **CAD** – DGN, DWG, DXF **Email** – EML, MSG **Other** – txt