HOW TO CONVERT A CSV TO XLS CODE

The code has few libraries like BOTO3,CSV,IO,JSON written to import along with XLRD.Д¬omments in code can be followed for replacing target S3 bucket name and few other details.Д®nter this code in the Function code section of our Lambda and click Deploy. The code we are using is a bit customized to our need we had, but the working remains same.Д¬ode could be found from below Git book page.

HOW TO CONVERT A CSV TO XLS FULL

We have given full S3 access since demo but advised to use restricted access We have added below policies to the service role that has been auto added while we are creating Lambda function.We can find the auto created service role in AWS IAM service under roles.Alternatively we can create a new role and give Execution role along with S3 access and assign that custom role to Lambda from вЂњExecution roleвЂќ section in Permissions tab of Lambda. We also need to add policies to the role for Lambda to access Files from S3. Once done ,landing page should look like below We need to have a subscribed SNS and in this demo it is mailer101 On Lambda functionвЂ™s landing page click on Add destination and set as below and click Save. We now shall add a destination which is AWS SNS to convey us in case of Lambda failure. We can specify other event types as per the requirement.вЂњ.xlsвЂќ is the file suffix and currently the files present in root directory of the S3.If files to be converted are placed inside other folders mention the same in prefix and click AddДЄWS recommends to use different different S3 if Lambda writes to S3 buckets, to avoid recursive Lambda calls at times.Since this is a demo,we are using the same S3. We are triggering Lambda on S3 object upload event(All object create events). Once S3 is selected,it asks for more details. In the main page of Lambda function,click on Add trigger and select S3 under Trigger Configuration. We shall add a trigger to our lambda from S3 bucket. Under Custom layers section which we prepare,select the existing layer that we have previously added.In our case layer is named xlrd.

HOW TO CONVERT A CSV TO XLS ZIP FILE

In this link find the site-packages zip file and upload the same and select the runtime as python 3.8. Once there,below screen could be seen,set them as shown and upload the a file that could be downloaded from below link and upload in the upload section of the below screen.This is the zipped layer file with xlrd library that works only for Python 3.8 runtime of Lambda. To create a layer navigate to layers in Lambda landing page and click on layers tab. We shall create a layer and later add the layer to the Lambda function. Once the Lambda function is created,Click on the Layers and it directs to the below pane.Add a layer in the layer section to add out XLRD Library. Select runtime as Python 3.8 and choose an execution role to upload logs to cloud watch.ДЇor additional config such as Code signing and VPC for Lambda to access ,check the Advance settings below in the page and click create function. Login to AWS management console and navigate to Lambda service.Д¬lick on create Function to create a new Lambda function. Python 3.8 shall be used as the runtime for the Lambda and we use XLRD,a Python Library as a layer to the Lambda because XLRD is not a default in Lambda Python runtime. We shall look into the Lambda config and code. One could modify the above design accordingly once the files are converted and placed into S3.ДЄWS Services used for conversion are AWS Lambda ,AWS S3, AWS Cloud watch. This approach is much feasible if the xls file has confidential or sensitive information.

HOW TO CONVERT A CSV TO XLS FREE

This actually is a Demo/POC of a conversion system intended for file conversions on platforms/systems like in our case SAP,that couldnвЂ™t rely on external APIвЂ™s due to security concerns and in one of the in-expensive ways.ДЎ.Secure conversion as it happens on environment that has been designed and configured by the individual.Дў.In-expensive and some low load cases are covered in вЂAWS always free servicesвЂ™ like Lambda.ДЈ.Event driven automated as file upload triggers Lambda and also handles multiple file conversion(Concurrency). In this article we shall see the вЂxls to csvвЂ™ conversion on AWS landscape by a server-less approach.

How to convert a csv to xls