With AWS Lambda, you pay only for what you use. You are charged based on the number of requests for your functions and the time your code executes. AWS Lambda is now generally available. The AWS Free Tier includes 1 million free requests and up to 3.2 million seconds of compute time per month with AWS Lambda.
To export data from Excel to a text file, use the Save As command. Delimited text files (.txt), in which the TAB character (ASCII character code 009) typically separates each field of text. Comma separated values text files (.csv), in which the comma character (,) typically separates each field of text.
Create or parse data in this popular pseudo-standard format. The CSV (Comma Separated Value) file format is often used to exchange data between disparate applications. The file format, as it is used in Microsoft Excel, has become a pseudo standard throughout the industry, even among non-Microsoft platforms. As is the case with most exchange formats since XML, CSV files have become somewhat of a legacy format.