Find a file extension
Closed
guillaume
-
xFast3 Posted messages 3 Registration date Status Membre Last intervention -
xFast3 Posted messages 3 Registration date Status Membre Last intervention -
Hello
I'd like to know if there is a way to find out the extension of an unknown file without trying them all one by one.
Let me quickly explain my problem:
Recently, I found an old file without an extension and I still can't open it.
Given its size (200 MB), I'm pretty sure it's a video, but despite trying all the well-known extensions (mpg, mpeg, avi, divx, wmv), nothing works, my player tells me the format is unknown.
Thank you for your help.
I'd like to know if there is a way to find out the extension of an unknown file without trying them all one by one.
Let me quickly explain my problem:
Recently, I found an old file without an extension and I still can't open it.
Given its size (200 MB), I'm pretty sure it's a video, but despite trying all the well-known extensions (mpg, mpeg, avi, divx, wmv), nothing works, my player tells me the format is unknown.
Thank you for your help.
17 réponses
even better: Use a file identification program based on what it has inside
https://mark0.net/soft-trid-e.html
it works
see you later
https://mark0.net/soft-trid-e.html
it works
see you later
Maybe, I say maybe, with a hex editor, there might be a way to find that; I imagine the files have some sort of "header" describing them. That being said, I also think there must be a freeware available somewhere that knows where to look in the file's source.
I add that, since I'm not very familiar with this, I wonder if the kind of hex editor needed is more of those disk-level editors rather than file-level ones (to display the header, not just the data).
I'll check; I have two CDs of free software and shareware, maybe there's something like that in there, but I can't promise you.
It's true that a utility that could help recognize the nature of a file wouldn't be superfluous (after all, MacOS - well, the one I know, system 7.1 - knows how to do that perfectly...).
kinder.surprise,
the tomcat's spotter
I add that, since I'm not very familiar with this, I wonder if the kind of hex editor needed is more of those disk-level editors rather than file-level ones (to display the header, not just the data).
I'll check; I have two CDs of free software and shareware, maybe there's something like that in there, but I can't promise you.
It's true that a utility that could help recognize the nature of a file wouldn't be superfluous (after all, MacOS - well, the one I know, system 7.1 - knows how to do that perfectly...).
kinder.surprise,
the tomcat's spotter
And zip, have you tried it?
It's common to try to hide zip archives by changing the extension, or even removing it entirely.
But it seems to me that it's noticeable with a hex editor, yes.
Here's what I see when opening a zip of a file named ficessai.jpg with Ultra Edit:
PK => identifies the source as PKware (zip tools)
If you could give us a little copy/paste of the first few characters of your file, that could help.
a +
(:•Þ Pitu
It's common to try to hide zip archives by changing the extension, or even removing it entirely.
But it seems to me that it's noticeable with a hex editor, yes.
Here's what I see when opening a zip of a file named ficessai.jpg with Ultra Edit:
PK EEÛ.Ö!xPN æ ficessai.jpg
PK => identifies the source as PKware (zip tools)
If you could give us a little copy/paste of the first few characters of your file, that could help.
a +
(:•Þ Pitu
Hello!
To search for extensions, I found this too:
https://file-extension.net/seeker/
https://file-extension.net/seeker/seeker.py?ext=avi
Hi!
To search for extensions, I found this too:
https://file-extension.net/seeker/
https://file-extension.net/seeker/seeker.py?ext=avi
Hi!
Hi,
If you're sure it's a video, maybe you don't have the right codec to play it because no matter what the extension name is, your player should be able to play it. To find out if you have the right codec, download G-Spot, a freeware that will tell you if it's indeed a video file and which codecs you need to play the video and audio.
If you're sure it's a video, maybe you don't have the right codec to play it because no matter what the extension name is, your player should be able to play it. To find out if you have the right codec, download G-Spot, a freeware that will tell you if it's indeed a video file and which codecs you need to play the video and audio.
It's now certain, it's indeed a video and you are missing the Ogg Vorbis codecs. You can easily find them on the internet. To see where your problem lies, you need to click on the "Render" button in Gspot. It will tell you if your video can be rendered or not, and with a bit of luck, it will indicate where it gets stuck. If Gspot tells you that the file can be rendered and your player still can't read it (this has happened to me before), you can try recompressing it with Virtual Dub. Good luck!
yeah I'm like pitu and kinder...
with a hex editor you'll already have some info (well 90%... there's always a chance it might not be there) but it's also possible that the file in question is corrupted.... and even with the right extension you'll never be able to read it...
.O Save Mary, eat Chouba
(_)__... Beaver
with a hex editor you'll already have some info (well 90%... there's always a chance it might not be there) but it's also possible that the file in question is corrupted.... and even with the right extension you'll never be able to read it...
.O Save Mary, eat Chouba
(_)__... Beaver
Here is the translation:
Here, I visualized the file with a hex editor and here’s what the first bytes look like:
OggS — Ñx 9 video DX508 € ¶ˆ ð OggS hGû vorbis D¬ ÁW ¸ OggS jCÆô z vorbis Xiph.Org libVorbis I 20020717 8 TITLE=AU DELA DU REEL S1ep05 - Dos au mur - ARAKIS.avi AUTHOR=ARAKIS OggS
Strange, isn't it? If someone could enlighten me.
OggS — Ñx 9 video DX508 € ¶ˆ ð OggS hGû vorbis D¬ ÁW ¸ OggS jCÆô z vorbis Xiph.Org libVorbis I 20020717 8 TITLE=AU DELA DU REEL S1ep05 - Dos au mur - ARAKIS.avi AUTHOR=ARAKIS OggS
Strange, isn't it? If someone could enlighten me.
Are you looking for software that can scan a file to recognize its real extension based on its coding, is that it? To accurately identify the valid extension of a file without an extension? This software exists, its name is FileTypeSpy. It is available on telecharger.com, and I can tell you that it works well. I use it, in particular, to identify files that I download from the internet, which helps avoid launching any file.
The answer is given above and no one seems to have caught on!! lol
Thanks to enguyen!
https://mark0.net/soft-trid-e.html
You need to download the software:
https://mark0.net/download/trid_w32.zip
or
https://mark0.net/download/trid_linux.zip
and ALSO the definitions file:
https://mark0.net/download/triddefs.zip
It recognized files without extensions for me: jpg images and an old works file!
Thanks to enguyen!
https://mark0.net/soft-trid-e.html
You need to download the software:
https://mark0.net/download/trid_w32.zip
or
https://mark0.net/download/trid_linux.zip
and ALSO the definitions file:
https://mark0.net/download/triddefs.zip
It recognized files without extensions for me: jpg images and an old works file!
