Windows 10: File type association, icon issue

I changed my office installation from 2010 to 365.

Afterwards, xlsx files were unassociated with Excel (I could open them within Excel, but not double-click). I associated the file with the Excel application, and now my xlsx files' icons are the exact icon of the Excel application, rather than the icon image of a spreadsheet with a smaller Excel logo.

I tried both repair installation functions to no success. Is there a manual process I can do to get the desired icon?

submitted by /u/DarthBobLoblaw
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:)

 

Custom File Icons?


I've got a program that creates various file types; some of these are associated with the program and display its icon. Is it possible to keep the file association, but change the icons for some of the associated types so they stand out in a listing?

If so, then ideally I'd like to extract the icon from the exe, make three slightly different versions, and make these display (at all scales) for the three main file types. Any suggestions for tools to do this? I have Photoshop CS5.

 

CUSTOM file extensions and CUSTOM icon association?


Windows 10 keeps changing icons associated with custom file extensions. It seems arbitrary because some new file types do work, others work for a while then randomly change.

1. How to correctly create CUSTOM file extensions and have a CUSTOM icon associated to the extension?
2. How to stop windows from changing the icons?

Types-1.3.1 Extension Icon Editor by Frank Worsley was used.
Types 2.6.2
If "Linked class" is used the folder icon updates, but the file icon does not.

 

File associations and file icons in Win 10 for non-MS types

It is, in fact, quite easy, if tedious, to amend file associations in Windows 10:

Go to - Start Button (Windows Flag Icon) > "Settings" > "System" > "Default Apps" > "Choose default applications by file type" (in the right-hand pane); and set/amend the Default apps by working through the list of extensions clicking on the app icons to
get a list of alternatives that can open the files. On completion, the issue you'll be left with is the proprietary file extensions that can only be opened with the 'rogue' application you are trying to remove.