无法使用 java 压缩 excel 文件（XLSX 或 XLS）

Question

In one of java sprint MVC based application, i need to compress size of excel file, because application is unable to send email attachment. any one please help

Answer 1

The formats with 'x' at the end are actually zip archives, so any more compression is moot. You could unzip the Excel sheet and look for data based compression.

• Images in lower resolution.
• Excel XML with less repetition of styles, attributes.
• Repeated expressions.
• Maybe there are embedded fonts.

Answer 2

Here is a tutorial of how to Zip single/multiple files in Java which should get you what you require: http://www.kscodes.com/java/how-to-compress-files-in-java/