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In java (and in any other programming language able to create files) you can create any kind of file.
There are libraries to create and manage at least:
- pdf – for example pdfbox
- xls xlsx – Apache poi
- doc docx – Apache poi
- txt csv
- json – Faster jackson
- xml
- yaml
- zip
- jpg gif tif
and all most used formats.
But you can create your format human readable (like txt) or binary (like xls).
Virtually there is no limit on that.
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solved what are the different type of files (File type) that we can create in java?