To export your Shopify products along with the list of collections the products are in you'll need to perform two quick steps. First, have a worksheet that shows your Shopify products. Second, map the products' manual collections to be shown in a column. Once this is done, just export the workbook and you'll be able to download all your products with their collections data as an Excel file. Below are more details on each step.
Just like in Excel click the + button on the worksheets bar. You'll now be presented with a list of what Shopify data you'd like to sync to the new worksheet - products, orders, customers, etc. Select the Products option. The new worksheet will be added and you'll see your Shopify Products data starting to populate in it.
To show your products' manual collections you first need to map a column in your Products-linked worksheet. Right click on the header of a column that is not yet mapped to sync to a field. Such columns have a grey background, whereas columns that are set up for data syncing have a light purple background. When you right click you'll see a context menu show up. Select the Shopify Sync Settings option.
From the column options you see, select the Product's Manual Collections radio button, and then click on the Save button.
You'll now see that the new column is set up to show each product's Manual Collections, and it will begin to populate with the handles of any existing Manual Collections that each product is in.
Now that we have our Products' collections data in our worksheet, let's export everything to an Excel file. Open the Workbook menu, using the button on the very top-right of the screen. Select the Export to .xlsx option. You'll be immediately prompted with the location where to save the Excel file on your computer. And that's it!