Window Problem? if you change a file extension , the file may become unusable, are you sure you want to change

Question

When I open New file in Excel and Word I get Window Problem? if you change a file extension , the file may become unusable, are you sure you want to change

the problem if i name new file abc it will not accept but i write extension abc.doc or abc.xls than it will accept , earlier i never use to write extension, how can i solve provlem ? Please help ?

Answer 1

go to folder option>view and tick mark the hide extension for files,



after this when you rename your files it won't be usable and won't be ask anything

Answer 2

Extension Help The System Know Which Program to use to open a file. So if you change file extension the file may become unusable. Normally the system hide the file extension it already knows. Since you provide very less information about where and how did you got this message I am guessing that you got this message while renaming a file. In this case do the following and then rename the file. Go to "Control Pane" > "Folder Options">"view" tab Select "Hide extensions for known file types " You may also want to select restore defaults if u prefer the defaults settings. Click apply. You would notice that all the know extension have gone. Now you can rename the files without changing the extension. Another possibility is that the file you are trying to rename has an extension that the system does not recognize, In that case change only the file name and not the extension. For example if you are changing a file named "name.dat" Only rename the part before the "."(dot). In this case "name", and leave the rest unchanged.

Answer 3

above ans is working

Answer 4

Very Very Thanks