Questions tagged [file-extension]
A file extension is an optional alphanumeric identifier which comes after the last found period in a file name. A file extension itself does not define what type of data is in a file, but it does give a hint as to what is *supposed* to be in the file.
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How can I determine file type without an extension on Windows?
I sometimes get files from my clients that have the wrong file extension. For example, the name is image.jpg but the file is actually a TIFF image. In many cases I can clarify it by opening the file ...
138
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How do you remove a default program association for file types in Windows 7?
I somehow have set the default file type association for a file type in Windows 7. It doesn't appear to be possible to delete it from the "Change the file type associated with a file extension" ...
126
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7
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File extension for Markdown files?
Is there an official file extension for standalone Markdown files?
61
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Find files filtered by multiple extensions
What is the correct syntax for:
find . -type f -name \*.\(shtml\|css\)
This works, but is inelegant:
find . -type f -name \*.shtml > f.txt && find . -type f -name \*.css >> f.txt
...
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Does it make sense converting a file to a higher audio bitrate?
When a certain file (mp4, flv, etc) has a 95 kbps audio bitrate - does it make sense outputing to a higher bitrate when converting to mp3 or other format (be it lossy or not)?
Would this result in ...
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Programatically associate file extensions with application on Windows
I've just recently reinstalled Windows and in setting up my environment I've noticed that all my associations for the various programming languages I edit in Notepad++ have gone (naturally).
I am ...
51
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How do I find out the file type without an extension? [duplicate]
After recovering my HDD, I ended up with a lot of files with no extension. Many of them are .bin files.
Is there any way to find out what file format they actually are?
Many of them have no ...
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How to extract a complete list of extension types within a directory?
Within a directory, and recursively within it's sub-directories, meaning every directory within a directory is processed, how do I compile a complete list of unique extensions within the directory?
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osx - stop xcode from opening ruby files
I have set my favorite text editor as the default application to open ruby files (.rb extension) multiple times by following Open With -> then Other... then I click the checkbox Always Open With.
...
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What file extensions should be used on GPG generated output?
In Linux file name extensions are irrelevant, but on a Windows system, many GPG users use GUI applications rather than the command line. They may want to be able to double click on an encrypted file, ...
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On Windows, what filename extensions denote an executable?
On Windows, *.exe, *.bat, *.cmd, and *.com all represent programs or shell scripts that can be run, simply by double-clicking them. Are there any other filename extensions that indicate a file is ...
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Show/hide extension of a file through OS X command line
I'm looking for a way, via terminal, to change whether or not a specific file's extension is shown in the Finder, something along the lines of:
$ hideextension ~/music/somesong.mp3
Without having to ...
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How to extract the filename without the extension from a full path?
I'm trying to right my first bash script, and at one point a filename is passed to the script as $1. I need to extract the file name without the extension.
Currently, I'm assuming that all extensions ...
18
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1
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Search for files with a specific file extension in Windows 7 [duplicate]
In Windows Explorer, I would like to search for all files in a specific folder and its subfolders with the file extension .doc. To do that, I tried to enter .doc in the search bar on the top right of ...
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How do I make and run my own file extension?
I was checking out the files in a old game called Warcraft III and saw that they had files with their own extension, for example, file name.w3x.
How do you make your own file extension and run it?
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There is a length limit to Windows file extensions?
If I want to create a new file extension for a binary/text data file that will open on my own application (extension ".mylongfileextensionname" for example), will Windows list it with my aplication (...
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How can I add default preview for files in Explorer?
If I click on a .ts (typescript) file and activate the Preview Pane in Windows Explorer, then I see a preview of the file:
Why? Because I set Notepad to open .ts files.
But I have .js files which I ...
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7
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Default save extension is "Normal Text" but Notepad++ is saving without an extension
When I try to save a file, the default extension is All types (*.*). It basically saves it without an extension, for example, just new 1 instead of new 1.txt.
“Default language” option in Settings → ...
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1
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Running shortcut from command prompt without the .lnk extension (Windows)
I have created a folder (d:\shortcuts), created shortcuts for most applications in this folder and appended the folder path to the Path environment variable. Now all my applications are available from ...
14
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3
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Differences between TIFF,TIF,tiff,tif
I have seen TIFF files having various extensions - TIFF,TIF,tiff,tif. Are they same? Can I safely rename a file with TIFF extension to tif or will it cause loss of information?
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How to open file with default program from command line?
If I click on a file in a GUI file explorer, a default program is used to open it. This is useful for files which I don't know how to open from the command line.
Is there a way to open a file with ...
12
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4
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Hiding files of a certain extension (.pyc) from Nautilus
I would like to hide every .pyc file from Nautilus.
I use Ubuntu 10.04.
What could I do?
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3
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How to remove extension from pathname passed as {} in `find -exec`?
Given the situation that audio needs to be extracted from video files residing in subdirectories, how would one go about properly naming the resulting files?
The following one-liner works, but ...
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Automatically hide files with certain extension in Windows
Is it possible for Windows to automatically hide files with a certain extension?
Let's say some program generates a set of files (I cant alter the sources of the program), and I would like some of ...
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What file format/database format does Picasa use?
I am trying to figure out what file format the .db file and .pmp files are. I tried using db_dump (Berkeley DB) for the .db files, but it seems that they are not Berkeley DB, or of an older version. I ...
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5
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Get Windows to treat files with the same extension differently
Multiple programs use the same file extension, but the formats are totally different and incompatible. For instance, I have .sch files on my computer that are in at least 5 different formats (TINA, ...
10
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3
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Searching for Extensionless Files in Windows 7
I cannot for the life of me figure out a way to have Windows 7 Explorer search for files with no extension. In XP it was nice and simple: just search for files named *. but in 7, that does not work ...
8
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2
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Remove a file extension case-insentively in Bash
I want to remove the suffix of a file by using basename in a Bash script.
The command removes the suffix only in a case-sensitive way though.
How can I remove a extension case-insensitively?
8
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6
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How to open nokia photo images with .nrw extension?
I took some photos with my Nokia and they stayed with the .nrw extension. How can I open this format?
8
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2
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Changing icons for protected file extensions in Windows 10
The goal is to get .jpg, .png, .tif, and .raw files to always open with Photoshop CC 2015 and use their appropriate icons.
You can refer to the flowchart below about how Windows 10 chooses an icon ...
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How do I dissociate a program from a file type?
If I have a file with the extension .class and I opened it with Notepad. How do I destroy that association so that Notepad is not associated with the .class file type? I do not want to change the ....
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What in the world is a .el8 file?
I am taking an online Latin class, and they gave me a video to watch.
A .el8.
What? el8? I have never heard of that in my life. It's supposed to be a video, so I tried renaming it to a .mov (Latin ...
7
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3
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Why does Windows append .php to my php files but not other ones
I have many different types of files in a folder - .php, .css, .htm, .js, .docx, .xls, etc.
The only file type that Windows (viewed from Windows Explorer) actually shows the extension are the .php ...
7
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What does X denotes in ASPX, DOCX, XLSX, PPTX etc?
Previously there were ASP, DOC, XLS, PPT etc and now ASPX, DOCX, XLSX, PPTX respectively.
What does X denotes in ASPX, DOCX, XLSX, PPTX etc?
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Is it safe to delete files with extensions containing non-alphanumeric characters?
I was working with Eagle 4.16r2 (Yes I know its old), and when I work on my project in it, I happen to save my work frequently as files with extensions .brd and .sch.
I just did a backup and now I ...
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Convention for file extensions: uppercase or lowercase
Is there a convention for the case of the file extension in Windows, i.e. all uppercase vs. all lowercase? If there is, what is the reason, if any, for the convention, or is it just for the purposes ...
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Are you allowed to come up with any desired file extension (for Unix, Linux, Windows)?
I want to create a file called "message" that contains text only. How does the system know what program to use to read it if I decide to call it:
message.txt?
message.dat?
message.enc?
message.cpz?
...
7
votes
1
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Why does my Windows open CSS file with notepad?
In CMD I get this:
C:\>assoc .css
.css=CSSfile
C:\>ftype CSSfile
File type 'CSSfile' not found or no open command associated with it.
But in explorer, CSS files have icon and I can double ...
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"file.myext" is not a valid Win32 application
I have written a registry that creates .myext.
Double-clicking on my file.myext refers to my executable file (converted from a batch file that opens a .jar) which then opens my notepad application.
...
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votes
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Is there a difference between .JPG and .jpg?
Files that have uppercase extensions (specifically .JPG) are not opening or being recognized in Windows Live Photo Gallery. .jpg files work as expected. What could be causing this issue?
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How does a file have no extension?
Take for instance:
cat /etc/passwd
Why doesn't this file have an extension such as *.txt*, *.dat*, etc? Or does an extension exist, but it's just being hidden?
Does this apply strictly to Unix-like ...
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votes
4
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Windows wildcards with files having more than 3 characters extensions
On Windows 7, I have a directory containing the following four files:
xxx.txt
xxx.txt2
xxx2.txt
xxx2.txt2
With the file have more than 3 character as a file extension, the behavior of the wildcard * ...
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How can I unassociate a file type from a program without a registry edit?
I accidentally configured .data and .text files to be opened with Notepad by default. I want to unlink those extensions from being opened by Notepad. However, Notepad does not appear in the list of ...
6
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Windows file association for README, INSTALL, LICENSE and the like [duplicate]
Possible Duplicate:
How to set the default program for opening files without an extension in Windows?
Many files originating in the UNIX world come without file extension. Popular examples ...
6
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3
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Way to search & find Files or Folders with no Extension in Windows
How do i search files with no extension? For best effect i would like only <4kb and if i could search inside for the text thewordiwant
I also have visual studios but i dont think writing ...
6
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2
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How to create a default association for files with no extension [duplicate]
Possible Duplicate:
How to set the default program for opening files without an extension in Windows?
I am using http://www.pnotepad.org/ (i wouldnt mind switching to something else if it ...
6
votes
1
answer
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Why should one prefer lower case file extensions like .jpg over uppercase ones like .JPG?
Many (most?) programs note file extensions in lower case. ls command in bash even prints foo.jpg highlighted as picture by default but not *.JPG.
Lower case characters are better to distinguish from ...
6
votes
1
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What's the difference between an *.ova file and a *.ovf file when exporting from VirtualBox?
I'm trying to export a Virtual Machine I have on VirtualBox so I can back it up, and when I went to export it, I was prompted with a "Save As..." dialog that asks me if I want to save it as a .ovf or ...
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Should all plain text files have some sort of suffix (e.g. *.txt, *.conf)
I create many notes in plain text files, but after a while the .txt suffix I put at the end of them seems to be unnecessary typing and visual noise. Is appending .txt to plain text files a strongly ...
5
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How can I run a (16-bit) .COM executable that has been renamed to .COS?
I'm trying to run a couple of 16-bit legacy DOS programs from a standard Windows XP DOS prompt. The problem is that the file extensions have been renamed from .COM to .COS and they are stored on read-...