Power Automate – Read large Excel files within seconds without creating tables using Microsoft Graph

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• not enough info

• Hi Jo, can you explain what you mean?

• Hi Pieter,

  What is the trigger of this flow?

• Hi Farhan,
  You can use any trigger you like. The trigger isn't really relevant. What should start your process?

• Thanks for the quick response Pieter.

  I have an automated process from SAP to send an Excel sheet as an attachment to my email nightly. The issue arises that the data is not in a table within the Excel file and there is no way to configure that. So I stumbled upon your post and how this HTTP method can be used to decipher data that is not within a table.

  I'd love if you could give me an example of how to utilize this with the problem statement that I have described above if you have the time.

  Farhan

• If the excel appears as an attachment to an email address that has it sole purpose of receiving these emails then you could trigger on the email arriving.

  Then get the flow to copy the attachment to a file in SharePoint and then use MS graph to read a range from the excel file.

• Is this range dynamic? Or is it possible to set a maximal range to capture all the data regardless of column length.

• No, you will have to set it to range values.

  So if your excel has a maximum of 200 rows then you would have to set it to read 200 rows. It might mean that you end up with empty rows.

• Instead of infopulse, I found this showed how to use the new azure site.
  https://www.c-sharpcorner.com/article/calling-graph-api-from-power-automate-flow/

• Thanks Chad that link is useful.

• There is definitely not enough info to use this article as a reference. "This now gives the ID" ... not for me, it does not. I do not have an object for ID from which to choose, while in your screenshot, you are able to select ID. So I must manually type in the hostname-SiteID-WebID. Then, it would be very helpful if you would include explanation and a screenshot of your compose action. It would also help if you explained the breakdown of the URI in the last HTTP call. And lastly, where did "formulas" come from in your "Apply to each 4" action? These instructions seem like they could be helpful and I thank you for putting this together, but they are just too incomplete and confusing.

• Hi Phil,

  If the ID doesn't appear in the dynamic content then the tooltip in the screenshot shows the expression needed. Anyway, I will include the expression in the post as code as well.

• Thank you very much, Pieter. I appreciate that. I'm sure you can tell that I'm somewhat new to Flow. It's always tough as a newbie to connect the dots.

• Thank you for the feedback.if you need any further help or if you find any other incomplete posts please feel free to contact me.

• Hello Peiter

  thanks for posting this article .

  just assume that there will be excel file received every day and user will upload into sharepoint library then flow can be triggered to process that data into SP list . but these files wont have fixed number of rows of data(but columns are static) , in this case how can I set the excel range dynamically ?so this solution wont work right ?

• Hi Pieter,

  thanks a lot for this article. However, when I try to list the rows in an excel (in my sharepoint online document library) with this Graph URL, I get a Gateway Timeout error (status code 504) :

  https://graph.microsoft.com/v1.0/sites/@{body('HTTP')?['ID']}/lists/%7B765ec93b-e00d-4816-a890-8ae4094c2adf%7D/drive/root:/MyExcel.xlsx:/workbook/tables/Table1/rows

  I also tried using your syntax with a range on my worksheet, but always the same Gateway Timeout error :

  https://graph.microsoft.com/v1.0/sites/@{body('HTTP')?['ID']}/lists/%7B765ec93b-e00d-4816-a890-8ae4094c2adf%7D/drive/root:/MyExcel.xlsx:/workbook/worksheets('MyWorksheet')/range(address=('A1:N71288'))

  Note that the URL like below just to reach the excel file works fine, and my OAuth setup is also fine :

  https://graph.microsoft.com/v1.0/sites/@{body('HTTP')?['ID']}/lists/%7B765ec93b-e00d-4816-a890-8ae4094c2adf%7D/drive/root:/MyExcel.xlsx

  So something in the API endpoint syntaxes like the below are causing a "Gateway Timeout" error and the action never completes ...

  :/workbook/tables/Table1/rows
  :/workbook/worksheets('MyWorksheet')/range(address=('A1:N71288'))

  If possible, I'd really appreciate any advice or tips on what could be cauing these gateway timeouts ??

  Thanks and best regards

• Hi Rahul,

  Can you try reading a smaller range. I wonder if you are hitting a limit somewhere.

  14 columns and 71288 rows makes a lot of data.

  You could try and look at the settings of the HTTP request action. The Pagination setting might help. Also the Allow Chunking setting could be something that will help you.

• Hello Pieter Veenstra,

  Thanks for posting this article . I have the same requirement as YKSiddal.

  Just assume that there will be excel file received every day and user will upload into SharePoint library then flow can be triggered to process that data into SP list . but these files wont have fixed number of rows of data(but columns are static) , in this case how can I set the excel range dynamically ?so this solution wont work right ?

  Can you please respond to this please...

• You could always use the Graph API call described here:

  https://docs.microsoft.com/en-us/graph/api/table-get

• Hello Pieter,

  Your guides are extremely helpful, thank you! From this guide and from the Import an "Excel Spreadsheet into SharePoint List" guide, there seems to be a step "formulas". What is in there? I am having trouble converting the HTML Body from the Excel sheet into an array format. I appreciate your support, thanks!