Snippet: Modifying Excel Files, Adding Formulas with Apache POI

Mon, 29 Sep 2014 00:00:00 +0200

Recently I needed to modify some excel files and to add some aggregated formula fields to a sheet and the following snippet did the work for me.

Figure 1. Modified Excel File with Formulas

Dependencies

Just two dependencies needed here: One for Apache POI and one for the Office Open XML Documents API.

<dependency>
	<groupId>org.apache.poi</groupId>
	<artifactId>poi</artifactId>
	<version>3.10.1</version>
</dependency>
<dependency>
	<groupId>org.apache.poi</groupId>
	<artifactId>poi-ooxml</artifactId>
	<version>3.10.1</version>
</dependency>

Sample Excel File

Our sample excel file is quite empty just some empty customer information and a chart that is bound to the data grid.

Ooo on Micha Kops' Tech Notes

Snippet: Modifying Excel Files, Adding Formulas with Apache POI

Dependencies

Sample Excel File