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.
308
questions
1
vote
1
answer
218
views
How to Sort and Move Files Based on their Extensions on Windows
I'm trying to sort and move files based on their extensions within Windows, and am following this tutorial using:
@echo off
for %%a in (".\*") do (
if "%%~xa" NEQ "&...
0
votes
1
answer
64
views
Does changing an .exe's file extension to .old make it no longer executable?
Some programs leave their old .exe files in place when updating. For instance, abc1.2.3.exe is left there when abc1.2.4.exe is installed.
It's still useful to have the old file around for easy ...
40
votes
6
answers
46k
views
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?
...
1
vote
2
answers
747
views
APPINSTALLER File (.appinstaller) - Is there a way to extract or convert to EXE.MSI
I have an (.appinstaller) (file) application that I would like to be able to convert it to a traditional msi/exe package...
I cant seem to find anything out there...
Anyone able to help with this ...
1
vote
1
answer
184
views
How can I convert text files with an unusual extension (.1 .2 .3 .4) into an image file?
Duplicate file names aren't saved as abc (1).jpeg, but instead abc.jpeg.1. They're inaccessible as an image; they're just text instead.
I've tried a bunch of websites and so far only convertio has ...
0
votes
2
answers
5k
views
How to associate file extension in browser?
We have a program that associates with the '.test' file extension. It works fine in Windows, but it will not work if we upload (the clickme.test) to the internet and open it inside the browser (IE/...
3
votes
1
answer
5k
views
What are the VMware's vm.scoreboard files?
Basically the same ask as from here:
I see a few new files beside usual guest file:
vm.scoreboard
vm-1.scoreboard
vm-2.scoreboard
etc. What are they?
The answer there doesn't make sense to me:
...
3
votes
1
answer
1k
views
How to assign an icon to a specific file extension in Windows 11?
I added a new file extension to the windows compressed file using the following regedit script and it works perfectly (mostly)
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\.zab]
@="...
2
votes
2
answers
845
views
Can Files Be Compressed Without Changing Extension?
It's common for web servers to pre-compress their files with brotli or gzip. And they do so without changing the extensions of the files. Is their a way to do this in a typical desktop environment (ex....
2
votes
5
answers
12k
views
Firefox saves the file without extension
When I download a file, Firefox removes the file extension. I mean, if I download "something.pdf", it saves the file as "something". I didn't have this problem before yesterday.
Any help would be ...
0
votes
1
answer
413
views
How to change default app of .html extension in Windows 11?
The .html file extension does not show in the default apps settings.
Here's the screenshot in default apps settings
Now I tried searching for a solution and tried a program named 'FileTypeDiag' but I ...
12
votes
3
answers
7k
views
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 ...
2
votes
3
answers
3k
views
Slow Context menu in windows 11
Context menu in W11 is so sluggish (specially on video files) i uninstalled everything that i suspected to be the cause and used the tool called "This Is Windows 11" to uninstall all the ...
0
votes
2
answers
117
views
MS Project saves to 2007 format, option to change is grayed out
I've got a user who has MS Project.
This user noticed his file opened in compatibility mode. The file was saved in the 2007 format.
I went into project settings >> save >> save files in ...
2
votes
2
answers
310
views
How to associate a command with files that have no extension (Regedit)
I have several processes that generate files with no extension at all and would like to add a custom context menu menu (i.e. be able to right click on them and select 'open in Notepad' or 'make .txt ...
1
vote
1
answer
149
views
Is there a simple way to specify whether a webp is lossy (like jpg), lossless (like png), or animated (like a gif)?
For example, is it possible to name something "file.lwebp" to explicitly designate that it is lossy, or "file.awebp" to designate it is animated? Or is there no such method, and ...
6
votes
4
answers
8k
views
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 * ...
0
votes
1
answer
675
views
How to Rename Multiple Files at Once in Windows
So i'm trying to rename few videos in separate folders to same name
and i did it without using cmd, so i just used the search box on the right side
And searched to as mp4 files and named them to &...
0
votes
5
answers
938
views
Windows CMD - How to append .txt to the names of all no-extension files in a folder and its nested subfolders?
I copied all my files from Ubuntu to a new Windows 10 computer. Many of these files (literally thousands of them) are plain text files without extensions ...
Every time I try to open one of these ...
1
vote
1
answer
721
views
How to associate "open with" programs exactly by file extension rather than file content format?
I use a system with Xubuntu 22.04 LTS.
Now Thunar, the file explorer, does include an option where you can right-click a file and choose the (default) application to open a file type with.
Problem is ...
0
votes
2
answers
433
views
Unable to remove entries in Windows File Explorer's New context menu which have no Registry ShellNew keys
On Windows File Explorer, I like to keep the New right-click context menu decluttered by removing most entries except those that I specifically want.
Thus, in the Registry, I delete (replacing "...
1
vote
1
answer
900
views
Register a file extension for all users
Lets say, I belong to Administrators in Windows 10 and I want:
I.
All other existed users.
Users not created yet.
When anyone from the above list press "enter" on a PDF file, then PDF ...
0
votes
3
answers
235
views
Windows 10: how to prevent File Explorer from opening .IMG files?
Dear fellow Windows warriors,
I've stumbled across an interesting problem.
A user in fairly pristine Windows 10 has received a suspicious file by e-mail, and due to momentary lack of concentration, ...
1
vote
1
answer
207
views
Something overwriting some settings set in HKCR for image files
What I'm trying to achieve: Change the file type description that is shown in the explorer file type column, when creating a new file etc.
What I tried to do but failed: Until now, I have been doing ...
137
votes
10
answers
678k
views
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" ...
1
vote
1
answer
1k
views
Always show file extension for screenshots
If you take a screenshot with ⌘+⇧+4 the file is saved as a .png to the desktop, but the extension is hidden. You need to open the Info dialog and untick "Hide extension" if you want to show the ...
0
votes
0
answers
59
views
How can I add files to the hidden files list in Windows 10 locally without modifying the file?
If anybody else has used AutoCAD before, I'm sure you're well aware that it generates an enormous number of backup files (.bak). This is great and useful because it's a bloated program prone to ...
1
vote
2
answers
102
views
Unknown file extension, nothing helps. Help please?
All i know it is some kind of texture files, either contains textures of layers of something.
Nothing can open it, identifiers say it's .abr but none of the Photoshop versions could open it. Not CS2,...
0
votes
1
answer
1k
views
Setting file extensions from uppercase to lowercase in Windows by default
I'm wondering if it's possible to set by default the lowercase file extension in Windows 10. When I create a new txt file, the extension is uppercase TXT. How can I set the option lowercase by default?...
25
votes
7
answers
16k
views
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 ...
3
votes
2
answers
176k
views
How do I open a file with the file extension “FILE?”
From time to time someone sends a file that comes in the extension of .FILE. How do I change this or open this?
I think they might be using Microsoft Word or something like at the office. I don't ...
3
votes
2
answers
2k
views
How can I open .dictionary files on OSX?
I'd like to have a look at the files that the Dictionary App that comes with macOS uses. I was able to locate the files, they're of the .dictionary format. How can I open them, if at all?
29
votes
5
answers
14k
views
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 ...
2
votes
1
answer
270
views
What file extension do OpenOffice Dictionary files have?
I have a program that supports importing OpenOffice Dictionary files for use with its own spell checker, which I would like to do since the language I want to write in isn't available as a built-in ...
0
votes
1
answer
308
views
Batch script remove last specific file extension or use special replacement rules
How do I setup a .bat script to remove and replace a specific file extension from all files in current folder with the following replacement logic?
Simply what I want is always remove last extension
...
2
votes
4
answers
3k
views
Rename Application option in "Open With" menu
So I don't want to change the default program that opens the file type.
Problem
Right click → open with → photoshop
But which one is the 64-bit version?
Maybe if I go to Choose default program I'll ...
4
votes
2
answers
7k
views
Add context menu items to specific file extensions
I think the title says all I want: I want to add context menu items for a specific file type like the yellow marked ones in the screenshot. Which registry changes do I have to make? In my case I want ...
125
votes
7
answers
64k
views
File extension for Markdown files?
Is there an official file extension for standalone Markdown files?
1
vote
1
answer
37
views
Need assistance with strange progressive numbering on file extension
In this image:
you can see that I was using Powershell to count the number of files by type, however, I noticed something unusual in the counts. That is, there are file extensions with progressive ...
3
votes
5
answers
8k
views
What does the 'X' in .aspx, docx, xlsx, etc... represent? [duplicate]
Possible Duplicate:
What does X denotes in ASPX, DOCX, XLSX, PPTX etc?
It's one of those things you just take for granted until one day someone asks you and you realize you can't answer it. Much ...
2
votes
0
answers
404
views
How to view file extension in macOS 'Save As' dialogue box in web browser
In macOS (Monterey), when I save files in a web browser (ex. Chrome or Safari), I cannot view the file extension in the save dialogue box. This means I must download the file before finding out the ...
0
votes
3
answers
1k
views
Many video file extensions not registered by VLC and unable to register them manually
tl;dr A recent installation of VLC VideoLAN on freshly installed Windows 11 revealed that many popular video file extensions are not registered with this player (many, many others are). I am unable to ...
-4
votes
2
answers
3k
views
file extension not valid . when it is
I can't open a excel file on my home computer. Every other computer I use opens the file apart from this one I use at home .
I get a error message -
financial.xlsx format is not valid.
This is ...
0
votes
1
answer
50
views
Prove which application is used for opening log files: assoc and ftype seem unreliable on Windows-10
My customer has a problem with logfiles, which become too large: on their PC (windows-Server 2016) Notepad.exe is used as the application for opening such files. I've altered this to Notepad++.exe, ...
1
vote
1
answer
618
views
What is the autosave powerpoint file extension
Following a windows PC crash, when asked if I wanted to save an autosave powerpoint presentation, I accidentally clicked no.
All my work was lost and the autorecover folder
C:\Users\<user>\...
17
votes
5
answers
108k
views
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?
-1
votes
2
answers
4k
views
How to open .BNDL files
I want to edit a .BNDL file in windows 7 but when I open it with notepad or Microsoft Office 2010, I get a file with weird characters.
Is there a way to edit this file in windows?
Regards
6
votes
4
answers
21k
views
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 ...
1
vote
5
answers
29k
views
Excel 2010 File Format/Extension Not Valid. Unable to Manually Change File Extension
I am at work and having problems opening an excel file. I continue to get the error:
Excel cannot open the file XXX.xlsx" because the file format or file
extension is not valid. Verify that the ...
0
votes
0
answers
41
views
Audit Request for Complete List of Recognized Filename Extensions in FFMPEG FFPROBE FFPLAY
I understand FFMPEG has a list of supported codecs and some users will be tempted to dismissively handwave my request by telling me to do my own research on codecs. Those responses will be treated ...