Operating Systems
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Generic problem for all Operating Systems

Unrecognized file type




By narekkm on Oct 01, 2007

" "
We have a custom program that runs on xp. One of the quirks is renaming a file specific to the program. This file has always been an unrecognized file type (which is ok). I accidently changed the file extension to .txt and specified excel as the program to open it with.

I need to change the file extension back to what it was and not have excel open it. No matter what I do I cannot disassociate excel from this file no matter what extension I give this file.

Any clues as how to "go back in time"? BTW this file is on a network and when accessing it from another computer, everything shows the way it should be, it's only when it's opened on my computer does it show the problem.

Any help is appreciated.

Best Solution

posted on Oct 02, 2007
Very Helpful)

PyroMan6x9x9

Rank: Guru 
Rating: 93%, 542 votes
Good Day,

This can be fixed, here's a step by step

1. Open folder containing any of the above said files.

2. Click TOOLS in the upper tool bar

3. Then FOLDER OPTIONS

4. Click the FILE TYPE tab at top of window

5. Scroll through list and find above said file type

6. Then click change button, and select from this list the program that you need to open this file with.

Hint:If this file type is not in the first list you can click the new button and create it.

Hope this helps
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