Questions tagged [file-format]

A file format is a particular way that information is encoded for storage in a computer file.

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How can I get a video URL list (e.g. YouTube playlist) as a playlist file (for media players)?

Following these steps has gotten me almost all the way: I can get a text file of YouTube URLs from a YouTube playlist by using this https://thetubelab.com/get-all-urls-of-youtube-playlist-channel/ ...
hamstar's user avatar
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How to determine bits per channel in XPM (X PixMap) image format?

Looking at the XPM (X PixMap) image format, I don't see anywhere that the number of bits per channel (or, equivalently, the number of possible colors) is specified. Poking around on my Ubuntu system, ...
Robert Dodier's user avatar
2 votes
1 answer
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Make a GIF image with an exact given byte size

For a specific task (replace an image inside a firmware without any data offset shifting), I need to create a GIF file of size 409x240 pixels of exactly 6449 bytes: offset 0-5: GIF89a (magic string) ....
Basj's user avatar
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12 votes
4 answers
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I can't tag my AAC files with meta-data; what can I do instead?

I have an AAC file which I want to tag with information (artist, title, track number, album title etc.) ; unfortunately - it seems AAC does not support most of these tags, and tagger apps refuse to ...
einpoklum's user avatar
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How can I store a webpage title inside a Windows .url file?

This is a question about the .url file format: How can I store the webpage title inside a Windows .url file ? I was unable to find an official documentation of the .url file format anywhere on the Net....
summerrain's user avatar
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ipod classic file With .VSp extension plays only on ipod, cannot convert

I have ipod classic 120GB. I installed a video file on it fron Sony camcorder(tape version) using Windows XP. The file extension indicates .VSP. Now this file only plays on ipod. I cannot convert it ...
GMS's user avatar
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Why doesn't Microsoft Outlook fully support EML format, i.e. including email export? [duplicate]

EDIT: I am not asking HOW to save email from Outlook in EML format. Hence this question is not a duplicate of How to save a mail into an .eml-file with Outlook? ! I cannot find any relevant reference ...
Honza Zidek's user avatar
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How do I detect the format of a file LOCALLY on the command line?

I do not want to upload my private files anywhere. I do not have any use of anything which guesses the format based on the file extension. I'm trying to find some sort of utility which is able to let ...
Taveon's user avatar
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What is the right file signature?

I want to have a correct table of file signatures. I found two sites that have a big table of file signatures but when comparing those two, I saw that there was a different. For example, on this site, ...
sirzento's user avatar
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How to assign a number on a text cell in excel

I need help. So I need to assign a number on a txt cell from excel. For example: the cell has the word Blouse. The word Blouse needs to have a value of 20 then I need to multiply this by $5. How can I ...
Irene's user avatar
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What is the difference between File Type and File Format?

I've some confusion regarding the File Type and File Format. Is it that Document is a File Type and PDF a file format? or Video is a File Type and MP4 is a file format ?
kevv's user avatar
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What makes two main JPEG file formats, JFIF and Exif, incompatible?

JPEG is not a file format. The two major formats are JFIF and Exif. Wikipedia page on JFIF says that: JFIF is mutually incompatible with the newer Exchangeable image file format (Exif). The two ...
gronostaj's user avatar
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filename extract and formatting

I have a lot of files in a folder \Testing, I'm trying to take the file name and format it inside the text file to a certain way. Example would be 111005000_10312019.pdf inside folder "Testing&...
user1358005's user avatar
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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: ÿØÿà �JFIF������ÿÛ�„� &...
Vedant Agarwala's user avatar
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Is there an established file format for storing information needed to connect to a WiFi network?

In particular, I'm curious if there's a file format used to encapsulate an SSID and security information about a wireless network which would allow it to be (in theory) exported from one device and ...
fstanis's user avatar
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How to open files with KMP as default?

I have downloaded some videos from Youtube. but their format is not KMP. It is "File". although when I right click on the file and click on "Open With" I can open it with KMP ...
Etemon's user avatar
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Compress all files to the "9" level with gimp

I created the scripts from Using Gimp to batch convert images to another format in Windows tip made by @forrest-voight. Can anyone tell me how I can add options to this script so that the maximum ...
dez's user avatar
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Is there a way for the Game Capture app of Elgato HD60 S+ play a .ts file?

With OBS, we can add a VLC player to the broadcast, and since VLC can play a .ts file, we can add that. However, if using the Elgato Game Capture HD app, we can add a video, but it seems like it is ...
nonopolarity's user avatar
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21 votes
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What are these .000, .001, etc. files and how do I read them?

I have a set of files that mostly end with numerical extensions [sda2.000, sda2.001, etc.], which makes me think they are some kind of bulk backup of a drive. I have not been able to find any ...
Mark E. McDermott's user avatar
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In Windows, what are the purposes of file extensions?

As far as I know, in Linux filename extensions don't have any special meaning to the operating system. It helps users to identify the file, of course, but the OS itself simply does not care about it (...
yyyyyyyan's user avatar
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How to dump Verity .ddd file to a text file?

I found this very helpful information about Verity database structure .ddd file - Verity Documentum? Now I want to migrate an old Verity database to a new application, therefore I'd like to dump ...
Scorp's user avatar
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1 answer
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What file format to use for photos? I will edit them. Then I will add text and make a PDF

I want to shoot a few photos using the smartphone. I will receive JPEG files. Next step I will move this photos to desktop computer (Windows 10 Home 64-bit). Now I want to edit this photos: some of ...
Konskoo's user avatar
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Should files with the "hdr" file extension end with newline characters?

I'm writing a script that enforces file formatting. One of the things it does is ensures that all text files end with newline characters. One area which I'm unsure of is with .hdr files. These are ...
Aaron Franke's user avatar
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2 votes
1 answer
574 views

Deal with reserved characters when syncing volumes with different formatting

I have a NAS and I want to copy some directories on it to an exfat formatted external HDD. Problem is paths / filenames may contain reserved characters for exfat (see https://en.wikipedia.org/wiki/...
fricadelle's user avatar
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1 answer
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Must every XML file/stream/etc begin with either a "<" character, or with a BOM followed by a "<" character?

I'm doing some filetype detection stuff and wanted to handle XML detection more robustly. I added support for an optional initial Unicode BOM (Byte Order Mark) followed by a < character in either ...
hippietrail's user avatar
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What is the unit of Margin in Advanced SubStation Alpha (ASS) subtitles file format?

I can't find a good documentation for the Advanced SubStation Alpha (ASS) subtitles file format on internet and I am wondering, what is the unit of margin? My intuition tells me it's a percentage but ...
Abitbol's user avatar
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2 votes
2 answers
970 views

Office 2003 can't open newer Office files

I installed the Office Compatibility Pack for Office 2003 so that I would be able to open, edit, and save newer Office files. I even installed up through Service Pack 3. However, it doesn't seem to ...
InterLinked's user avatar
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3 votes
3 answers
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Is there a disk image file format that only store sectors which are filled (non empty)?

I have a 500GB hard drive that contains several NTFS partitions. I would like to create a single disk image of all partitions. My ultimate goal is to mount that drive later and scan it for possible ...
tigrou's user avatar
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3 votes
1 answer
560 views

What is the sturcture of RW2 file?

Can any one tell me that the Panasonic's RW2(RAW Format) is based on TIFF or not ? The header is same as of old format (RAW).
Diwaker chauhan's user avatar
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1 answer
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Why different hex editors show different binary for a file?

When I open a binary(in this case it is C:\\Windows\\System32\\notepad.exe), different hex editors show different result each other, for the one same file. I tested it on starting point of section ...
rosshjb's user avatar
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1 vote
2 answers
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Are all PDF readers compatible with PDF/A

I was exploring the setting for my printer/scanner, and there is an option to make all scans PDF/A Compliant. Having never heard of this, I looked it up. I understand that PDF/A is a method of ...
BarrowWight's user avatar
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1 answer
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Is there a standard for this file format?

I run an Ubiquity Edge router which itself is based upon Vyatta (it does not matter, it is just in case someone knew the product). The configuration file looks like that (...) service { dhcp-...
WoJ's user avatar
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6 votes
1 answer
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Does any picture file format embed author, title etc.?

Does any picture file format embed author, title etc.? I'm currently playing with ffmpeg and such info ships with a video file and I thought it useful. I was wondering if an image file can also ...
S Meaden's user avatar
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1 answer
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Why are MS Office files actually ZIP files with another extension? [closed]

I has been trying to reverse-engineer the Microsoft Office file formats and I've found they are actually Open XML and the "Open XML" file format is actually a ZIP format. When I open the Office files ...
CodigosTutoriales's user avatar
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0 answers
211 views

"MP4" files unreadable in TV/Video players but readable in my PC and phone

I download series(.mp4 files) with my phone and copy them into the USB flash memory using OTG adapter and see them in the TV or the video player. But this week I downloaded 3 files as always but got ...
user3486308's user avatar
3 votes
2 answers
167k 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 ...
taylor1277's user avatar
-1 votes
1 answer
84 views

File Format - How to open this extension

I received several images with the .irt file extension that I am unable to open. I am not familiar with this file format. How can I open them?
Mike S's user avatar
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1 answer
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Why can't I send a large file to a FAT32 formatted USB Drive? [duplicate]

Why can't my USB drive accept a large file, as in bigger than 3.50 gb, when it is formatted in FAT32? My drive is a (16 gb) drive, but when I tried to send an ISO file to it while it was formatted in ...
Ijlal Hussain's user avatar
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1 answer
935 views

Why do tabs in YAML work some but not at all times?

We've used tab-characters in some of YAML-files here: host: "foo" port: 8011 p: "bar" For some reason, the same version of Ansible running the same playbook works just fine with these files ...
Mikhail T.'s user avatar
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2 answers
2k views

How can I create a .prn file from a TIFF?

I have an industrial printer that requires .prn files to print. I'd like to automate generation of these files using software I write. We start with TIFF files, and then we use special software from ...
Chad Johnson's user avatar
13 votes
2 answers
6k views

Is ISO 32000-2:2017 (PDF 2.0) really an open or free format? [closed]

Is it open? According to Wikipedia, PDF is an open format. But the ISO charges 198 Swiss francs for you to download the PDF 2.0 specification. Now according to free_file_format (first ref in the ...
Marinos An's user avatar
1 vote
1 answer
480 views

Why binary files like this snippet of a PNG has all this whitespace in it

Here is a snippet of the first part of a PNG file viewed just by opening it up in Sublime Text and viewing the hex code directly. 8950 4e47 0d0a 1a0a 0000 000d 4948 4452 0000 02e7 0000 0155 0806 0000 ...
user avatar
1 vote
1 answer
972 views

How to compress a bunch of files efficiently?

Let's say you have a lot of files to archive. They are in several different file formats (txt, docx, pdf, png, jpg, mp3, zip, etc.). What are the best practices to compress them all, so that they ...
CidTori's user avatar
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0 answers
2k views

How do I open a *.app file in linux terminal?

I am trying to run the xeoma app provided as xeoma.app in Linux via terminal so I can run some switches but Linux keeps telling me xeoma.app: command not found. The general term "app" is flooding my ...
naps1saps's user avatar
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4 votes
1 answer
5k views

How to tell if an internet video is Flash or HTML5 (or something else if there is such thing)?

I have some problems with Opera and Chromium browsers playing some streams and I want to debug that. But I cannot tell what works and what does not because I cannot tell what format a given stream is ...
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0 answers
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How do I convert from .mp4 to .part? [duplicate]

I have a partially downloaded video file (the download was paused). It is a large file and a significant portion has already been downloaded. I accidentally renamed it to .mp4 and its format got ...
Dove's user avatar
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34 votes
2 answers
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Which file format starts with "45 52 02" bytes?

I've got .cdr file format (not CorelDRAW file), however I've trouble opening/burning it. I expect it to be the disk image. Here are the first few lines: $ hexdump -C *.cdr | head 00000000 45 52 02 ...
kenorb's user avatar
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69 votes
2 answers
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What does Matroska have which WebM doesn't, that made the differentiation necessary?

I've read that WebM is essentially a subset of the Matroska format. What does Matroska support that WebM doesn't, which necessitated "christening" a new format rather than just saying "...
einpoklum's user avatar
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-2 votes
1 answer
34 views

How to save JPEGs for MAC OSX?

I am pretty sure that's a simple question, but I am not acquainted with MAC and its files formats at all, so: How to make a copy of exported JPEGs from Photoshop for MAC users or is there relevant ...
Olenia's user avatar
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30 votes
3 answers
8k views

LibreOffice: How to save in Git friendly format?

LibreOffice saves into files that are zip files. Zip files are generally suboptimal to use with Git: A small change in the document can change most of the zip-file, thus making it impossible for Git ...
Ole Tange's user avatar
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