Introduction

ExcelWriter is a powerful tool for generating and manipulating Excel files. The files are generated in memory then saved to disk or streamed them to the user over HTTP. In order to provide maximum flexibility for manipulating every element of a spreadsheet, ExcelWriter (in particular ExcelApplication) has a rich object model that must be populated at runtime and requires sufficient memory. It is important to understand that the memory required to process a large report is much greater than the size of eventual output file.

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