Have you ever wondered which file formats are shown with their “real” image preview in your Workspace (projects), and which formats are displayed with an icon only? The lists below provide you with an answer.

File formats which appear with a real preview:
​.png, .gif, .jpg, .jpeg, .eps, .ai, .pdf, .tif, .tiff, .ico, .dng, .bmp, .svg, .avi, .mp4, .flv, .wmv, .mov, .mkv, .psd, .ttf, .doc, .dot, .dotx, .docx, .xls, .xlt, .xlsx, .xltx, .ppt, .pptx, .pot, .potx

File formats which appear with an icon preview:
​.sketch, .bmml, .psb, .otf, .less, .scss, .html, .zip, .gz, .indd, .js, .mp3, .mpeg, .rtf, .key, .prproj, .aep