Importing product with images via csv-file

Hi,
I have a little problem with getting the pictures to appear when I upload products via csv. When i use link it works, but it will take way too long with so many products.

Since the picture name is the same as SKU, I want to use it because it will save me many tens of hours.

The file name of the image is as follows xxxxxx-x. I write the following in excel and have tried to add .jpg, without results.

Is there anything I forgot to do?`