How do I change a file extension in Windows? At work, I often have to send e-mail files to other organizations. They are handed over to me from other departments, and I do not always have time to look through them. It so happens that the recipient cannot open them. And most often this is the case. When renaming a file, they do not pay attention to its extension. Each file has an extension that is added to the name with a dot. For example: the file “ Letter. doc » . « Letter"Is the name of the file you gave, and «. doc " Is the extension of the file (namely the Word program), by which you can determine in which program this file was created and with which program it can be opened. If the extension of this file is correct, then the shortcut looks like this:
But if you removed the extension " . doc", Then it will look something like this:
Do you see the difference?
It's good if the person to whom you handed this file realizes that you most likely created it in Word program and will add the necessary permission itself. And if he, like you, is not very versed in this? And it will ask you to send this file again. And you, not understanding what he wants, will send him the same file again. And then more and more ...
I had such a case. Once in my life I took a day off, and the mail was sent by the employees themselves. So they sent the same file all day. And the information was very necessary and urgent.
As a result, my boss was "slapped" with a severe reprimand, but I was naturally deprived of the bonus, for the fact that my mail does not work well - it spoils all the files. And neither side realized that they themselves were to blame.
Some who did not indicate the extension, while others did not guess to ask by phone in which program the file was created. All that was needed was to change the file extension.
So, so that you do not have such curiosities, pay attention to the extension when renaming the file. Or turn off the display of file extensions, then when renaming, you will not be able to change its extension, which means nothing will be broken.
Note
By default, the visibility of file extensions should be disabled in Windows, but somehow it was initially enabled for us.
To prevent accidentally changing the file extension in Windows XP, open any folder. Select from the menu " Service » — « Folder properties ».
A new window will open “ Folder properties ". Select the " View ».
Find in the window " Extra options »Parameter and put a check mark on it. Remember to save your changes.
In order to change the file extension in Windows 7 or, on the contrary, prohibit its change, you need to go to the menu Start - Control Panel .
Upstairs in the record View set instead of category - Small icons .
Find Folders settings ... Open it.
In a new window Folder properties go to tab View, and check the box on the entry Hide extensions for registered file types .
Now, when you rename a file, its extension will not change.
Video: How to change a file extension in Windows.
Answers:
Andrievsky Alexander:
When you change the file extension, it will only stop automatically opening by the program registered for this particular extension. Most programs will still be able to open it through the file \ open menu. However, anyway, when renaming, it is best not to change the extension (but change only the name) - so as not to get confused yourself.
Shurovik:
You seem to have the "Hide registered filename extensions" option turned off. Therefore, when renaming, the entire file name is highlighted, including the extension. And you, without noticing this, think that you are renaming only what is up to the last point (i.e. before the expansion). Of course, the extension is lost, and Windows honestly warns you about this.
Kostya:
You do not have to check the "hide extensions for registered file types" checkbox. Those. your files are displayed in the form, for example Microsoft Word documents: Document1.doc and naturally, when you try to rename such a file, you specify the new file name, and forget to specify the extension. Outputs: 1. As said above - check the box "hide extensions for registered file types" (My computer - service menu - folder properties - view tab - check the box "hide extensions for registered file types"). 2. Do not check the box, but when renaming files, be sure to write the old file extension after the dot: For example, there was a file archive.rar - you want to rename, for example, to pack - Write pack.rar.
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The file is not deleted, opened, renamed, or moved. What to do? How do I remove it?
This problem can occur in just a few cases:
1. The file is locked by the system or another program
If you want to delete, move or rename a file, but as a result of your actions, the system displays a message stating that this is not possible due to the fact that the file is locked or access is denied. The first thing to try is to restart your computer and try to delete the file right after the restart. In most cases, this will help.
If the file is constantly occupied by the system, then you can use the utility Unlocker, this utility will allow killing the process that is blocking the file, which allows it to be deleted later.
Be careful as you can delete the file necessary for the normal operation of the system!
2. The file is damaged, as a result of which deletion, movement or renaming is not possible.
It is entirely possible that you just had a crash on your hard drive, and the file is corrupted. In order to work normally with this file again, you need to run a disk check.
This is done as follows:
Open "My Computer"
On the disk icon, right-click, select properties
In the window that opens, go to the service tab
Click "Check"
We put the checkboxes "Automatically fix ...", "Check and restore ..."
Click "Start"
If the disk is the system one, the question “Schedule a scan at system boot” will appear - we answer “YES” and restart the computer.
It should help, at least I've had it more than once.
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