For questions relating to file-formats. This is a general tag, please consider using the actual file-format your question relates to as a tag instead.

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4
votes
2answers
14k views

Why is it possible to convert a file just by renaming its extension?

When you rename files into a different, most of the times it does not work. But, suppose you have a .png file, you can just rename "image.png" to "image.jpeg" or "image.gif", it automatically gets ...
5
votes
1answer
515 views

Is it possible to preview arbitrary formats in Nautilus?

I recently found out that Nautilus (Ubuntu 12.04 at least) can show thumbnails of files of non-image formats, for example (data grapher) grace files (.agr) shows a small version of the graph contained ...
4
votes
0answers
124 views

What are the '~' files created when I edit something and can I delete them? [duplicate]

Possible Duplicate: Prevent gedit from creating files with the '~' suffix I've noticed that every time i edit or in anyway modify a .txt, .php, .html, .doc etc file, after I save it, ...
0
votes
3answers
2k views

Why are text files created on ubuntu not recognised as windows notepad files?

Whenever I want to access a text file created on ubuntu using Windows, it looks as if the file extension is not recognised. I always have to choose open with and then select notepad. Is there any ...
0
votes
1answer
383 views

How do i enable hinting for streaming in mp4 files?

I have used MP4Box in the past to enable hinting on mp4 files in the past but it looks like its no longer in the repositories. Is there anything else that can be used or do i need to compile from ...
2
votes
1answer
131 views

Ubuntu apps open folders instead of documents?

I must have done something to Ubuntu 12.04 on my latop because a few weeks ago, various applications (Chrome, Calibre, etc.) have stopped opening documents (like PDFs, zip files, etc.). What happens ...
10
votes
2answers
5k views

Is there a way to quickly change all the file extensions of all files in a folder?

I have a large folder of .m4b audio books which in their current format won't play on my Android phone. However they do work fine if they are renamed to .m4a Is there a quick method or terminal ...
3
votes
0answers
645 views

How to edit mime types on precise [closed]

In precise, when I try to change default icon for a specific file type with Assogiate, there is no effects; not even if I try this operation under root rights. Are there some workarounds known for ...
5
votes
3answers
9k views

How to open .xmi files

Is there any app that can open .xmi files in Ubuntu? File created in the XMI (XML Metadata Interchange) format, an XML file format most commonly used for exchanging UML diagrams; stores model design ...
2
votes
3answers
7k views

I am not able to delete a corrupt NTFS partition on my pen drive. How can I force its deletion?

I formatted my 16GB pen drive with the NTFS file system in windows vista. After that I started copying some files. However, only a few files were copied to the pen drive before the copy operation hung....
5
votes
1answer
1k views

How to register a shell script as the main application for a given file extension

I have a shell script "the_script" that I would like to register as the default application for the files with the extension ".ext". For this purpose, I have written an xml file to register the mime ...
9
votes
2answers
31k views

How to extract files from a split 7zip archive?

I downloaded a series of packages that all compress one thing. The files end in .0, .1, .2, etc. The User Lists of these packages I downloaded say to use the file.bat to successfully extract, or to ...
1
vote
1answer
393 views

how to read files recovored by scalpel?

I used scalpel to recover some deleted jpg files. Now I have files which look like this: jpg-1-21, jpg-1-22 etc... but don't know how to open them. I tried with image viewer, but it says there's no ...
2
votes
1answer
2k views

Save .csv with formulas?

It seems to be an undocumented/unsupported feature, but if you open a csv (comma separated spreadsheet) with Libreoffice, it will calculate formulas that start with = in the text file. Unfortunately I ...
0
votes
1answer
917 views

What program can I use to open an .itf file? (interlace file)

After looking around for a couple hours, I can only find that files with this extension are associated with JPI TopSpeed Pascal. The files were generated by a cable tester and I have no idea what the ...
0
votes
1answer
102 views

Did I lose my personal files?? Help!

My U11.10 was not booting up. I tried to "repair" by reinstalling using live CD, option "Upgrade from 11.10 to 11.10" (none of your personal files will be touched). When the installation was almost ...
6
votes
3answers
33k views

How to delete all the files with a certain extension from a folder and all of its subfolders?

I want to remove all the .jpg files from my Music folder in order to save room. My Music folder contains subfolders, and I would like to know if there is a command to remove all the .jpg files from ...
3
votes
1answer
567 views

How to open word 5.0 files?

I tried Libreoffice but failed. I used the file command, but it only recognizes the file as "data". Is there a way to open a very old format like a Word 5.0 file? After I use catdoc,it shows ...
2
votes
1answer
2k views

Batch convert ai files to pdf / png etc

Does anybody know of software that can batch convert .ai into another format? Preferably png or pdf?
0
votes
1answer
4k views

How can I force Firefox to open a aspx file?

http://www.morningstar.es/Default.aspx asks for a file operation (open with xxx app or safe), http://clerk.house.gov/floorsummary/floor.aspx, however opens without a hitch (as in this thread). Any ...
2
votes
1answer
978 views

Editing of a saved LibreOffice writer document in MS WordPad

I am new to Libre Office. I have a problem with the format in which to save a office document (when comparing to Microsoft office) I have set up my Libre office writer doc (call it a master ...
3
votes
0answers
643 views

How can I open .TC extensions in Truecrypt by default and mount automatically? [closed]

I have Truecrypt installed on my Ubuntu 64 bit machine and I have many Truecrypt partitions that I share with friends. Its not always convenient to: Open truecrypt > browse to the file and then ...
1
vote
3answers
275 views

Can I open Peazip files on windows operating system?

Can I open peazip files with winrar or winzip on Windows operating system? If they can not be open is there a way to create rar and zip files that can be open on Linux and Windows operating systems?
0
votes
1answer
1k views

How to sort files by file extensions through the command line?

This is my question: How to sort files by file extensions through the command line?
6
votes
4answers
12k views

How to add an extension to all files via terminal

I would like to add the .zip extension to all files. I tried this, however it does not work: ls | awk '{print $1 " " $1".zip"}' | xargs mv -f
2
votes
1answer
530 views

Where is “Applications > System Tools > File Types Editor” in 10.10?

I was following this link to set up for opening Internet Explorer .url files. But I cannot find "Applications > System Tools > File Types Editor" in 10.10. So I wonder how to do this equivalently in ...
1
vote
1answer
6k views

How to play APE (Monkey's audio) files?

How can I play APE (Monkey's audio) files in Ubuntu 11.10? Thanks in advance! Solution: I finally installed ffmpeg as duffydack suggested, using the instructions from here: http://ubuntuforums.org/...
5
votes
1answer
1k views

Hide desktop.ini and Thumbs.db files

I have Ubuntu and Windows 7 on my computer. Now I have a problem, I want to hide the desktop.ini and Thumbs.db files Windows automaticly creates. I can't rename all files to .desktop.ini and .Thumbs....
10
votes
2answers
3k views

Is it possible to view WebP images in nautilus / photo program?

I've converted some images from jpeg to google's WebP image format, which reduces my images' size by about 90%! The big problem is that WebP images can only be viewed with a web browser, not with ...
4
votes
2answers
8k views

Memory stick not formatting?

I have a 8gb memory stick pro duo that is refusing to format or be read correctly. While deleting a file off of it from my Playstation Portable, the battery got accidentally knocked out. Now, nothing ...
6
votes
1answer
2k views

How I can extract files, name.iso.001 name.iso.002 and so on

I just downloaded some materials, but the extensions are not recognized by Ubuntu. I have a bunch of files names name.iso.001, name.iso.002 and so on. How I can extract or mount it?
1
vote
2answers
2k views

What programs can display an RTFD (rich text + attachments) document?

Nothing on my Ubuntu 11 system seems to automatically open rtfd files.
5
votes
2answers
3k views

LibreOffice export compatibility with .doc

I know I can open .doc files in LibreOffice, but can I save a new document as a .doc? You used to be able to do so in OpenOffice, but I can't find anything in LibreOffice to do that.
7
votes
2answers
33k views

How do I erase/format a harddisk from a live CD?

I need to format a drive containing an old install of Ubuntu 10.04, to install Vista (not my idea!) Vista setup apparently refuses to format non-FAT32 or NTFS partitions. However, I can't seem to ...
0
votes
1answer
28 views

Asogiate won't work on 11.04. How do I fix that?

Asogiate is a filetype editor (MIME), and on 11.04 if gives an error about the database being malformed, then won't work. How do I get around this?
6
votes
3answers
3k views

How to open .arc file

I have a Contacts.arc file which took from a nokia phone as a back-up of contacts.Now my mobile is lost and i want to see some numbers.Is there any application to open .arc file in ubuntu?. I searched ...
0
votes
1answer
113 views

Is Ubuntu One be able to store RAW and AVI files?

Is Ubuntu One be able to store RAW file and AVI video format. I cant find an answer on this question on here. I have tried and none of my files were able to be copied
3
votes
3answers
201 views

Assign run command for all media files

Currently Totem/Movie Player opens and plays any type of media files, be it audio or video - is there a way to change that run command? EDIT I am already aware of properties option from right-click'...
5
votes
2answers
10k views

How to convert multiple ISO8859-1 to UTF-8

Am trying to convert several SQL files from ISO8859-1 to UTF-8 Am doing the following command: iconv -f ISO_8859-1 -t UTF-8 *.sql What i get is an output of their content to the terminal which is ...
44
votes
7answers
75k views

How can I open a .dmg file?

I've got a .dmg file, and I can't figure out how to open it. How can I open it?
19
votes
5answers
36k views

Splitting an MP4 file

What is the fastest and least resource consuming method for splitting an MP4 file? I tried ffmpeg but got an error: $ ffmpeg -vcodec copy -ss 0 -t 00:10:00 -i /home/asafche/Videos/myVideos/MAH00124....
4
votes
1answer
4k views

Read a multipage tiff?

I'm trying to sort out how to open a multi-page tiff. The sender swears it has more than one page, but in the default viewer I'm only able to see the first page. How do I view all pages?
17
votes
11answers
22k views

What do you use to edit Microsoft Word documents (docx)?

What alternatives exist for editing Microsoft Word documents (docx)? I know about OpenOffice and Google docs. What else is out there?
3
votes
2answers
4k views

Does LibreOffice Support AmiPro Format (.sam)?

I was reading that LibreOffice was finally opening up in supporting many of the formats that were eventually been closed in OpenOffice every time an update appeared. I see that Lotus 1,2,3 and WordPro ...
4
votes
2answers
4k views

image viewer: png vs gif

I have a bunch of files that have .png extension. However, some of them are actually gif files. Any of the files, I can open them w/ gimp or view them in firefox, but when I try to open them with ...
4
votes
1answer
1k views

Can I present a powerpoint presentation with sound?

It is possible to demonstrate .PPT with audio under Ubuntu? example such of .ppt - it is short tales for kids
37
votes
5answers
48k views

Is there an application for reading mobi files?

Is there e-book reader on Ubuntu that read mobi file format?
3
votes
2answers
12k views

How can I extract .bin (image) files?

I need to extract a .bin file and I have no idea how to do it in Ubuntu. In Windows I usually used to do it using MagicISO.
3
votes
1answer
3k views

Problem opening SFX archive file(.exe) using the archive manager [closed]

I have installed both rar and unrar using apt-install but I am still not able to use archive manager for opening the archive file.. I have also tried installing p7zip(p7zip-full and p7zip) but no ...
33
votes
7answers
47k views

How do I view an Outlook .msg file?

I need to view a .msg file. It is an email from Microsoft Outlook. How can I do this in Ubuntu?