Text file with 0D 0D 0A line breaks

Question

A customer is sending me a  csv file where the line breaks are made up of the sequence 0xD 0xD 0xA  As far as I know line breaks are either 0xA from Mac or Unix or 0xD 0xA from Windows   Is the 0xD 0xD 0xA any known encoding  Is there any known sequence of savings that corrupts a file s line endings that causes this  I think the customer uses a Mac    The file doesn t start with any encoding markers  it starts with the text contents directly  The text is displayed correctly if opened with code page 1252

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Just saying  this is also the value  kind of     that is returned from php upon    lt  php var dump urlencode PHP EOL      gt          Prints  string   0D 0A   length 6 -- used in 5 4 24 at least

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This typically stems from a bug in revision control system  or similar  This was a product from CVS  if a file was checked in from Windows to Unix server  and then checked out again     In other words  it is just broken

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Netscape ANSI encoded files use 0D 0D 0A for their line breaks

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The CRCRLF is known as result of a Windows XP notepad word wrap bug  For future reference  here s an extract of relevance from the linked blog   When you press the Enter key on Windows computers  two characters are actually stored  a carriage return  CR  and a line feed  LF   The operating system always interprets the character sequence CR LF the same way as the Enter key  it moves to the next line  However when there are extra CR or LF characters on their own  this can sometimes cause problems  There is a bug in the Windows XP version of Notepad that can cause extra CR characters to be stored in the display window  The bug happens in the following situation  If you have the word wrap option turned on and the display window contains long lines that wrap around  then saving the file causes Notepad to insert the characters CR CR LF at each wrap point in the display window  but not in the saved file  The CR CR LF characters can cause oddities if you copy and paste them into other programs  They also prevent Notepad from properly re-wrapping the lines if you resize the Notepad window  You can remove the CR CR LF characters by turning off the word wrap feature  then turning it back on if desired  However  the cursor is repositioned at the beginning of the display window when you do this

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Apple mail has also been known to make an encoding error on text and csv attachments outbound   In essence it replaces line terminators with soft line breaks on each line  which look like  0D in the encoding   If the attachment is emailed to Outlook  Outlook sees the soft line breaks  removes the   then appends real line breaks i e  0D0A so you get 0D0D0A  cr cr lf  at the end of each line   The encoding should be  0D  if it is a mac format file  or any other flavour of unix  or  0D0A  if it is a windows format file     If you are emailing out from apple mail  in at least mavericks or yosemite   making the attachment not a text or csv file is an acceptable workaround e g  compress it   The bug also exists if you are running a windows VM under parallels and email a txt file from there using apple mail  It is the email encoding   Form previous comments here  it looks like netscape had the same issue

[character-encoding] Text file with 0D 0D 0A line breaks

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Examples related to file-format