A feed is a document made up of a list of products which contains attributes that define each one of your items in a unique way. Some attributes, such as age group [age_group], can have standardized values. Others can be filled with your own choice of value, such as ID [id] or title [title]. Accurately describe your items using these attributes so that customers can search and find your products more easily.
Once created, you can submit your feed in your Manufacturer Center account. You can upload your feed directly to Manufacturer Center or schedule automatic fetches of your feed to enable Google to retrieve it regularly from your server.
Select how you want to add product information
If you have a small number of products to upload 
The manual product editor is available in the “Variants” section of Manufacturer Center. You can add basic details about your products in this section. Learn more about adding products manually
Do I need to have any specific knowledge to use this method?
- No specific technical knowledge is required.
Is any formatting required?
- You can format using copy and paste, and no special formatting is required.
Where can I submit the updates?
- You can submit the feed in the product editor tool in Manufacturer Center.
If you want to use Google Sheets 
You can upload your product data using a generated Google Sheets template. (You can also use an existing Google Sheets file that contains your product data.) Updates you make to your Google Sheets file apply automatically to the products in your account. Learn more about using Google Sheets with Manufacturer Center
Do I need to have any specific knowledge to use this method?
- Basic spreadsheet knowledge is required.
Is any formatting required?
- Attributes should be formatted according to our feed specifications (column names are provided in the Google Sheets template).
Where can I submit the updates?
- When choosing how to upload your feed, select the “Google Sheets” option.
If you want to use another program or have technical knowledge 
Manufacturer Center accepts other file formats that you can use to upload products. TSV files are traditionally used by most spreadsheet programs. XML files are more technical, and recommended for partners that use PIM software, databases, or other data management systems that export XML files. Learn more about TSV and XML files
TSV file 
Do I need to have any specific knowledge to use this method?
- Basic spreadsheet knowledge via any editor is required. For example, Google Sheets.
Is any formatting required?
- While formatting, attribute names should be added in column headings, and values in rows.
Where can I submit the updates?
- When choosing how to upload your feed, select the “Upload” option.
XML file 
Do I need to have any specific knowledge to use this method?
- PIM partner or XML generation knowledge is required.
Is any formatting required?
-
While formatting, you can use
<g:attribute name>attribute value</g:attribute name>.
Where can I submit the updates?
- When choosing how to upload your feed, select the “Upload” option.