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Copying CSV data from Sharepoint to Excel Table

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Posted on by CU27020030-0

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Hi! I'm hoping someone can help me with this, because I'm completely stuck...

I have a .csv file with a database export (about 150 columns / 14,000 rows) that gets uploaded to a folder in Sharepoint daily. I have an excel file with a table that is linked in a Power App as a data source.

I am trying to automate removing all rows daily and replacing them with new data from the new .csv file but I can't get it to work.

Also, the part of the flow that removes the the existing rows only gets 265 of them.

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David_MA 14,499 Super User 2026 Season 1 on at

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For your question about only 256 rows being processed, I can answer that. You need to enable paging under the settings of the list rows actions and set a limit for the number of items to return. The default is 256 as you have seen.

With the large number of rows you have every day, I would suggest writing an Office Script to delete the rows from the table and then running the Office Script on the file each day. I am not positive this will work, as it was generated by Copilot. Make sure to replace "Sheet1" with the name of your worksheet and "Table1" with the name of your table. This script will delete all rows in the specified table, leaving only the header row intact.

function main(workbook: ExcelScript.Workbook) { // Get the first worksheet let sheet = workbook.getWorksheet("Sheet1"); // Get the table by name let table = sheet.getTable("Table1"); // Get the number of rows in the table let rowCount = table.getRowCount(); // Delete all rows except the header row if (rowCount > 0) { table.deleteRowsAt(0, rowCount); } }

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Vadym 2 on at

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Processing of 14000 rows in Apply to each loop requires too many API calls and time.

The other approach is to use action 'Run office script' do delete rows (or delete the worksheet and create the new one, or create a new file).

There is a video CSV to Excel Power Automate and Office Scripts Any File Encoding - Free | Fast | Easy https://www.youtube.com/watch?v=9J6ThPWGaG0&t=2s

When it comes to updating data with help of Office Script there is a limit in 5 000 000 cells by one action.

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