@Mohsen Akhavan Welcome to Microsoft Q&A, Thank you posting your query!
There is a multiple similar thread discussion in SO forum:https://stackoverflow.com/questions/64619196/use-azure-function-to-export-csv Please refer to the suggestion and let me know the status!
How to read the file content and parse the CSV file from BLOB in Azure?
read csv from blob storage with Azure function no permissions & how to read the data from blob storage and access it by using azure function app
File processing and validation using Azure Functions: https://learn.microsoft.com/en-us/samples/azure-samples/serverless-file-validation/file-processing-and-validation-using-azure-functions-logic-apps-and-durable-functions/
Hope this helps!
Kindly let us know if the above helps or you need further assistance on this issue.
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