Can I convert my octet-stream / text file to a jpeg?

I got a file with MIME type application/octet-stream , off the browser cache. I have a strong feeling it's a jpeg file that I want to open. First few files of the file:

Ã¿Ã˜Ã¿Ã �JFIF������Ã¿Ã›�Â„� ""$$6*&&*6>424>LDDL_Z_||Â§ ""$$6*&&*6>424>LDDL_Z_||Â§Ã¿Ã‚��Ã€"�Ã¿Ã„�0�������������������������Ã¿Ãš����Ã¶Â„cÂ£1$@Ã„ $2AÂ¤ bÂ¤(�Ã„Ã€���@Ã„ÃÂ«Â”Ã¨Ã


It looks like a binary file. I tried bin to jpg: https://convertio.co/jpg-converter/ but no avail. Any ideas on how to go about this?
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asked Mar 22, 2021 at 22:32
Vedant Agarwala Vedant Agarwala
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Just rename it .jpeg? Otherwise it looks like you just need to trim the first 4 to 8 bytes. Header format expected en.wikipedia.org/wiki/JPEG_File_Interchange_Format
Commented Mar 22, 2021 at 23:04
Better to use software that will read the browser cache properly as the files are not necessarily in the format you want. Use this for Firefox: nirsoft.net/utils/mozilla_cache_viewer.html. Use this for Chrome: nirsoft.net/utils/chrome_cache_view.html