<input type="file" accept="application/vnd.ms-excel,application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" >
或者
<input type="file" accept=".XLS,.xlsx" >
或者
<input type="file" accept="application/vnd.ms-excel,.xls" >

*.3gpp
audio/3gpp, video/3gpp
3GPP Audio/Video

*.ac3
audio/ac3
AC3 Audio

*.asf
allpication/vnd.ms-asf
Advanced Streaming Format

*.au
audio/basic
AU Audio

*.css
text/css
Cascading Style Sheets

*.csv
text/csv
Comma Separated Values

*.doc
application/msword
MS Word Document

*.dot
application/msword
MS Word Template

*.dtd
application/xml-dtd
Document Type Definition

*.dwg
image/vnd.dwg
AutoCAD Drawing Database

*.dxf
image/vnd.dxf
AutoCAD Drawing Interchange Format

*.gif
image/gif
Graphic Interchange Format

*.htm
text/html
HyperText Markup Language

*.html
text/html
HyperText Markup Language

*.jp2
image/jp2
JPEG-2000

*.jpe
image/jpeg
JPEG

*.jpeg
image/jpeg
JPEG

*.jpg
image/jpeg
JPEG

*.js
text/javascript, application/javascript
JavaScript

*.json
application/json
JavaScript Object Notation

*.mp2
audio/mpeg, video/mpeg
MPEG Audio/Video Stream, Layer II

*.mp3
audio/mpeg
MPEG Audio Stream, Layer III

*.mp4
audio/mp4, video/mp4
MPEG-4 Audio/Video

*.mpeg
video/mpeg
MPEG Video Stream, Layer II

*.mpg
video/mpeg
MPEG Video Stream, Layer II

*.mpp
application/vnd.ms-project
MS Project Project

*.ogg
application/ogg, audio/ogg
Ogg Vorbis

*.pdf
application/pdf
Portable Document Format

*.png
image/png
Portable Network Graphics

*.pot
application/vnd.ms-powerpoint
MS PowerPoint Template

*.pps
application/vnd.ms-powerpoint
MS PowerPoint Slideshow

*.ppt
application/vnd.ms-powerpoint
MS PowerPoint Presentation

*.rtf
application/rtf, text/rtf
Rich Text Format

*.svf
image/vnd.svf
Simple Vector Format

*.tif
image/tiff
Tagged Image Format File

*.tiff
image/tiff
Tagged Image Format File

*.txt
text/plain
Plain Text

*.wdb
application/vnd.ms-works
MS Works Database

*.wps
application/vnd.ms-works
Works Text Document

*.xhtml
application/xhtml+xml
Extensible HyperText Markup Language

*.xlc
application/vnd.ms-excel
MS Excel Chart

*.xlm
application/vnd.ms-excel
MS Excel Macro

*.xls
application/vnd.ms-excel
MS Excel Spreadsheet

*.xlt
application/vnd.ms-excel
MS Excel Template

*.xlw
application/vnd.ms-excel
MS Excel Workspace

*.xml
text/xml, application/xml
Extensible Markup Language

*.zip
aplication/zip
Compressed Archive