I use a long procedure: copy from Excel and paste it to Photoshop, and then save it in image format. Sometimes, I don't like the quality of the result (blurr, or cut at the end) I have to use even more steps: make it into a PDF file, use PDF-Word converter, then copy-paste into Photoshop. If anybody could tell me how to do it more efficiently, it would be appreciate.
I would think that your copy from Excel and paste into Photoshop method would work fine. Have you tried the screen shot method mentioned above in post # 2? If you are getting a low quality picture maybe your "save as" jpg settings (options) in Photoshop are set to high compression / low quality. Check to make sure your "save as" settings in Photoshop are set to best quality. Also, if you are adjusting the size of the picture (making it bigger or smaller) that can decrease quality as well.