95 What is a Codec (e.g. DivX?), and how does it differ from a File Format (e.g. MPG)? 2011-06-23T02:12:29.930

61 What does Matroska have which WebM doesn't, that made the differentiation necessary? 2018-01-02T14:29:42.613

45 EOL in Notepad++ and Notepad 2010-05-22T18:02:51.030

37 Using Gimp to batch convert images to another format in Windows 2009-12-01T17:01:51.743

33 Which file format starts with "45 52 02" bytes? 2018-02-03T23:02:53.897

31 What is the difference between WAV and FLAC? 2013-02-17T21:37:31.993

27 Save OS X Grab images in formats other than .tiff? 2010-07-13T18:10:30.840

22 What file extension does a tab delimited file have? 2013-04-04T12:55:21.930

20 LibreOffice: How to save in Git friendly format? 2017-11-01T08:33:44.087

19 What are .md files? 2011-07-13T20:12:00.910

19 What markup language is this? (ca. 1991) 2011-09-25T23:38:12.750

19 How do I open a "Acrobat X" document without the newest version? 2012-04-13T19:53:55.140

16 True difference between Excel CSV and Standard CSV 2011-06-26T09:05:23.823

15 Is there still any reason to prefer GIF over PNG when creating images for web pages? 2009-10-25T19:15:20.953

12 Program to dump ID3 tag structure 2011-12-02T22:02:43.430

9 Is there a way to convert SWF animations to movie files on Linux? 2011-02-02T15:29:42.453

9 Why are camera files typically prefixed "DSCN" or something similar? 2011-03-10T05:59:41.793

9 Image formats that support layers 2011-05-12T17:31:09.577

8 How can I tell what version of the dBASE format a .dbf file is? 2011-07-07T18:02:41.780

7 Math equation formats 2009-07-30T15:48:07.293

7 notepad++ adding extra lines to a file 2011-06-14T08:00:50.823

7 Why are there no video formats that support transparency? 2014-04-26T05:54:23.580

7 Inspect serialized file content 2016-07-31T10:26:27.370

6 Site with list of most popular file formats 2009-07-21T14:48:58.480

6 Convert videos to iPod Touch-friendly formats 2009-08-16T13:22:45.167

6 How to set default file format for MS Paint 2010-05-25T14:16:10.040

6 Are you allowed to come up with any desired file extension (for Unix, Linux, Windows)? 2011-09-17T21:34:21.993

6 Why provide a postscript document? 2011-09-25T13:10:45.590

6 Convert old videos to have smaller sizes 2012-06-02T23:20:45.567

6 Is there a single catch-all-features tracked music format? 2013-05-12T18:32:00.917

6 Does any picture file format embed author, title etc.? 2019-07-21T10:58:17.297

5 Document file format for universal adoption? 2009-07-16T22:10:02.463

5 Who is EmilyMarieDaunt or How to read/reverse engineer Master Clips DCF file 2010-10-31T17:04:47.943

5 Is there extensible structured file analyzer, like network analysis tools? 2010-12-27T05:01:31.917

5 What is a "file format"? 2011-01-12T13:34:49.533

5 What exactly is a binary file? Is a JPEG file (.jpeg) a binary file? 2011-07-09T12:08:08.280

5 Who decides if file format is popular enough to have its own MIME type? 2012-08-03T02:42:01.527

4 What is the most "universal" static mesh file format? 2009-07-29T13:12:19.893

4 What is an easy, reliable way to determine the type of container a video file uses on Windows? 2009-11-22T09:38:16.380

4 Tell if a .gz file is really gzipped 2010-03-03T23:50:33.513

4 How can I see the contents of an MDF file? 2010-03-27T16:47:56.247

4 Export to csv options using Numbers 2010-06-28T10:48:46.950

4 Tarball on Windows? 2010-09-21T20:09:22.877

4 Is there a file format equivalent of Wireshark? 2011-03-23T04:11:07.943

4 Is there any free way to convert 3DS Max (*.max) to *.3ds or *.obj? 2011-06-14T14:14:57.590

4 Is there a utility which do retrieve file format information? 2011-06-22T09:58:14.493

4 Where is synchronization information stored in container formats? 2011-11-15T15:29:23.700

4 What are the .efires files on OS X Lion's Recovery HD? 2011-12-04T21:46:10.523

4 What is the file format for storing PGP private keys? 2012-04-22T18:10:53.607

4 Can VLC Player save an `.mpg` file? 2013-05-02T21:36:01.920

4 How can we discover what programming language was used to make a software? 2014-05-25T07:03:08.017

4 Is ISO 32000-2:2017 (PDF 2.0) really a non-open and non-Free format? 2018-10-04T09:12:09.553

3 What are the differences between the various video formats? 2009-09-20T13:38:08.560

3 How are images stored within a PDF? 2009-11-07T18:56:47.413

3 How do I open a CAB file on Mac OS? 2009-12-09T09:14:20.923

3 How to open/mount a BKF file? 2009-12-12T13:15:05.173

3 How do you read a .rdoc file on a Mac? 2010-01-30T20:38:16.113

3 Is there a tool to verify whether a file with .mp4 extension is exactly in mp4 format? 2010-06-20T11:56:13.227

3 Why does burning a CD ISO image to DVD work? 2010-08-20T20:12:20.963

3 Opening SGML files 2010-09-13T16:38:06.497

3 Unknown file format, need to open! 2010-10-12T16:23:49.983

3 Is it possible to play a .wax file in Mac Os X? 2010-11-12T05:18:59.640

3 How is the length of media files determined? Do they use tags? 2011-03-01T20:53:30.133

3 How can I view Mac OS X Parental Control files with format .data? 2011-06-16T02:38:39.930

3 Which file format starts with 0xAD 0xE1? 2011-06-27T21:19:11.427

3 Playlist file format for video segments 2011-07-13T23:23:52.160

3 vim "modeline" equivalent for eclipse? 2011-11-09T10:21:10.563

3 File format of encrypted file 2012-02-08T01:19:26.303

3 Archive / compression formats or tools which support multiple file forks or streams? 2012-12-09T00:42:53.500

3 Unable to open DicomViewer file without CD 2013-03-19T17:08:59.687

3 What is the significance of these different width, height and resolution parameters? 2013-07-28T20:02:04.100

3 Best format for compression of large amount of small files 2014-12-06T15:12:45.000

3 Creating bitmap fonts with just text editor? 2015-06-04T18:48:58.377

3 Is there a way to automate the conversion of old Access databases (.MDB files) to the newer .ACCDB format? 2016-02-17T19:44:40.867

3 What font format is this? 2017-06-08T22:58:20.623

3 How to tell if an internet video is flash or html5 (or something else if there is such thing)? 2018-04-16T07:29:46.843

3 What is the sturcture of RW2 file? 2019-10-04T08:04:32.357

2 Do you lose quality converting from a lossy audio format to a lossless format? 2009-12-31T04:42:13.727

2 Where and in what format are custom dictionary files for common applications kept? 2010-10-08T10:29:34.650

2 Suggestions for archiving CD-Audio discs in a single file 2010-10-15T10:27:34.577

2 Archiving large folders 2011-04-14T18:08:04.007

2 Convert compressed SWF to AVI (or MPEG etc) via FFmpeg 2011-04-14T23:28:04.823

2 Save Raw Image Data As Image 2011-05-15T00:13:52.783

2 Is Workbook.FileFormat available to the Excel UI (specifically when the file type can't be saved) 2011-06-02T04:35:30.513

2 Excel version confusion 2011-06-28T10:38:58.523

2 What type of file has a number as the file extension? 2011-06-29T22:09:32.337

2 How do you save an Excel document as a Word document? 2011-07-07T03:37:44.537

2 How to "clean" a PSD file before publishing? 2011-12-03T21:19:38.960

2 Change line endings and delimiter format (permanently) when saving to CSV from Excel 2011-12-21T13:50:56.147

2 Lightweight source code beautifier 2011-12-23T02:00:36.690

2 Can MP4s be 480p? 2012-02-03T05:26:07.477

2 converting Kindle files 2012-07-12T03:42:48.240

2 Recover a MicroSD memory 2013-09-06T08:58:08.543

2 How do I get Gimp to save by default in `.xcf.bz2` instead of `.xcf`? 2013-10-13T16:39:17.333

2 Appending one file to the end of another 2014-01-22T02:56:10.017

2 Identify Mac circa 1993 Word Processing Application 2014-06-15T11:47:38.600

2 External hard drive won't format due to "read-only" files 2014-07-29T02:58:42.913

2 Why does Microsoft Word open Word 6.0 Binary Documents and Templates in Protected View by default? Is there a reason I shouldn't turn that off? 2014-08-15T01:39:42.193

2 Do lossless audio files keep original quality when played (or only when converted back)? 2016-02-23T12:51:28.857