Can't open an old TIF in CS6 Photoshop.

[Stellabystars100]

Error message is: "Could not complete your request because it is not the right kind of document."   Opened the document in MS Paint and saved as file type: .tiff and the document opened. 

I have a huge volume of old work that I go back to constantly.  To have to open the document in another program and then save as only to open in Photoshop is laborious and should not be neccesary.

Adobe Creative Design Suite 6, Windows 7, Core i7- 3740 QM CM CPU @ 2.7 GHz, 8G of RAM,

[bryanp72843098]

I changed the file extension to .psd and that fixed it. Good luck!