DocumentationAdvertisingCreative Guide

Manage asset files

Last update: Wed Feb 18 2026 00:00:00 GMT+0000 (Coordinated Universal Time)

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  • Dynamic HTML5 ads require a feed file in Microsoft Excel spreadsheet (XLSX) format and the actual image assets that are referenced in the spreadsheet.

  • Static HTML5 ads require only a single image asset per ad.

  • Video ads require a feed file in Microsoft Excel spreadsheet (XLSX) format and the actual video assets that are referenced in the spreadsheet.

NOTE
You can use each feed file for only one catalog.

File requirements

  • Dynamic HTML5 ads:

    • A feed file in CSV, TSV, or Microsoft Excel spreadsheet (XLSX) format, with one header row and one data row for each ad variation. Include an image name in each row using the format images/image_name (such as images/300x250_acme_logo.png).

      The advertiser-specific field names must map to the available fields for dynamic ad feed files.

    • The associated image assets in GIF, JPEG, JPG, or PNG format. See the supported creative sizes.

    You can upload a single XLSX file, a single image file, or a single ZIP file containing any combination of XLSX and image files.

  • Static HTML5 ads:

    • One image asset per ad in GIF, JPG, JPEG, or PNG format.

      You can upload either a single image or multiple images in a ZIP file.

  • Dynamic video ads:

    • A feed file in CSV, TSV, or Microsoft Excel spreadsheet (XLSX) format, with one header row and one data row for each ad variation. Include a video name in each row using the format videos/image_name (such as videos/300x250_acme_logo.png). The ZIP file can be a maximum of 512 MB with a maximum of 500 rows.

      The advertiser-specific field names must map to the available fields for dynamic ad feed files.

      For all accounts with dynamic videos, the best practice is to create a catalog using the asset file together with a copy of the universal feed template Adobe Creative Template, in which you map each field in the asset file to a field on the Advertising Creative backend.

    • The associated video assets in MP4, MOV, or WEBM format. Supported ad templates include start card, end card, top overlay, bottom overlay, or L-shaped. Each video’s duration must be between 1-90 seconds. See the supported creative sizes.

    You can upload a single XLSX file, a single image file, or a single ZIP file containing any combination of XLSX and video files.

Upload an asset file

NOTE
Instead of uploading asset files, you can also directly upload a catalog when you add dynamic creatives to a creative library. Any catalogs you create there become available within the Catalogs view for future use.

  1. In the main menu, click Creative > Feeds.

  2. Click the Assets tab.

  3. In the upper right, click Create > Asset.

  4. Configure the asset file:

    1. Select the advertiser who can access the asset file.

    2. Specify the asset file in either of the following ways:

      • Drag and drop a file on your device or network into the box.

      • Click Select a file to locate the file on your device or network.

    3. Click Upload.

All ZIP files are decompressed automatically. When you upload a spreadsheet file, the file is listed on the Feeds subtab. When you upload an image file, the image file is listed on the Images subtab.

Download an asset file

  1. In the main menu, click Creative > Feeds.

  2. Click the Assets tab.

  3. Hold the cursor over the asset row and click Download.

    The file is downloaded according to your browser’s normal procedure.

Delete an asset file

  1. In the main menu, click Creative > Feeds.

  2. Click the Assets tab.

  3. Hold the cursor over the asset row and click Delete.

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