There are times when I want to open certain files in a hurry.
The solution I use is to open them from the task bar (you can open other kinds of files and programs from the taskbar also) This will open Excel if not already open as well as make the files very easy to find.
First of all, the Quick Launch toolbar should be showing. If you want to activate it or if you are not sure, right click the taskbar next to the Start button at the bottom of the screen and select Toolbars. Check Quick Launch if it is not check already (or uncheck it and check it again to see which part of the Taskbar disappears and then reappears) You may have to reset the width of the Quick Launch toolbar, uncheck Lock the Taskbar if necessary (right click the taskbar near the Start button again to see the menu), adjust the toolbar width and recheck Lock the Taskbar if desired. Then again, you may want to leave this step until the end though.
Now open Explorer by either right clicking the Start button and selecting it from the menu, or by simultaneously pushing the Windows key and E. Select the file you want and drag it to the Quick Launch toolbar and you are ready to go. Push the new icon that appears and the file will now open
But there is another thing I like to do, especially in the case of multiple Excel files (or other program files like Word) and that is to change the icon. It makes individula files so much easier to identify. Right click the file's icon on the Quick Launch toolbar, select Property, then Change Icon. You will see a set of standard icons associated with the software you are using, but if you find these are not enough, there should be a Browse button that will enable you choose icons from inside your computer. Still not enough, do a web search for something like "windows icons" and you will find plenty :-)
Don't forget you can also change the name of the tooltip that appears when you hover the mouse cursor over the Quick Launch icon, by right clicking it and selecting Rename.
Here is a pic of a file with an icon I selected as above. Launching it from the taskbar saves a lot of time if I get an urgent phone call.
Note: You can also open files from the Desktop or Start Menu. I prefer using the taskbar because it is always visible and takes less clicking. A drawback is there is a lot less space available on the taskbar, one has to be a bit more picky about which files to add.