htmlinput="file"浏览时只显示指定文件类型xls、xlsx、csv_html/css_WEB-ITnose

Valid Accept Types:

For CSV files (.csv), use:

<input type="file" accept=".csv">

For Excel Files 2003-2007 (.xls), use:

<input type="file" accept="application/vnd.ms-excel">

For Excel Files 2010 (.xlsx), use:

<input type="file" accept="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet">

For Text Files (.txt) use:

<input type="file" accept="text/plain">

For Image Files (.png/.jpg/etc), use:

<input type="file" accept="image/*">

For HTML Files (.htm,.html), use:

<input type="file" accept="text/html">

For Video Files (.avi, .mpg, .mpeg, .mp4), use:

<input type="file" accept="video/*">

For Audio Files (.mp3, .wav, etc), use:

<input type="file" accept="audio/*">

For PDF Files, use:

<input type="file" accept=".pdf"> 

DEMO:
http://jsfiddle.net/dirtyd77/LzLcZ/144/