# Help with binary files

**URL:** https://forum.kirupa.com/t/help-with-binary-files/219385
**Category:** Uncategorized
**Created:** [March 16, 2007, 2:01am UTC](https://forum.kirupa.com/t/help-with-binary-files/219385 "2007-03-16T02:01:41Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![wo1olf](https://avatars.discourse-cdn.com/v4/letter/w/278dde/32.png) [@wo1olf](https://forum.kirupa.com/u/wo1olf)
#### Post date: [March 16, 2007, 2:01am UTC](https://forum.kirupa.com/t/help-with-binary-files/219385/1 "2007-03-16T02:01:41Z")

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I want to know how can i do (in c++) to re-write in an existing binary file, without erasing its content ?