What is a correct mime type for docx, pptx etc?
For older *.doc documents this was enough:
header("Content-Type: application/msword");
What mime type should I use for new docx documents? Also for pptx and xlsx documents?
Here are the correct Microsoft Office MIME types for HTTP Content Streaming:
Extension MIME Type
.doc application/msword
.dot application/msword
.docx application/vnd.openxmlformats-officedocument.wordprocessingml.document
.dotx application/vnd.openxmlformats-officedocument.wordprocessingml.template
.docm application/vnd.ms-word.document.macroEnabled.12
.dotm application/vnd.ms-word.template.macroEnabled.12
.xls application/vnd.ms-excel
.xlt application/vnd.ms-excel
.xla application/vnd.ms-excel
.xlsx application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
.xltx application/vnd.openxmlformats-officedocument.spreadsheetml.template
.xlsm application/vnd.ms-excel.sheet.macroEnabled.12
.xltm application/vnd.ms-excel.template.macroEnabled.12
.xlam application/vnd.ms-excel.addin.macroEnabled.12
.xlsb application/vnd.ms-excel.sheet.binary.macroEnabled.12
.ppt application/vnd.ms-powerpoint
.pot application/vnd.ms-powerpoint
.pps application/vnd.ms-powerpoint
.ppa application/vnd.ms-powerpoint
.pptx application/vnd.openxmlformats-officedocument.presentationml.presentation
.potx application/vnd.openxmlformats-officedocument.presentationml.template
.ppsx application/vnd.openxmlformats-officedocument.presentationml.slideshow
.ppam application/vnd.ms-powerpoint.addin.macroEnabled.12
.pptm application/vnd.ms-powerpoint.presentation.macroEnabled.12
.potm application/vnd.ms-powerpoint.template.macroEnabled.12
.ppsm application/vnd.ms-powerpoint.slideshow.macroEnabled.12
.mdb application/vnd.ms-access
For further details check out this TechNet article and this blog post.
或者，如果您使用.Net v4.5或更高版本，请尝试使用System.Web.MimeMapping.GetMimeMapping（yourFileName）来获取MIME类型 - 比硬编码字符串要好得多
加载.docx文件
if let htmlFile = Bundle.main.path(forResource: "fileName", ofType: "docx") {
let url = URL(fileURLWithPath: htmlFile)
do{
let data = try Data(contentsOf: url)
self.webView.load(data, mimeType: "application/vnd.openxmlformats-officedocument.wordprocessingml.document", textEncodingName: "UTF-8", baseURL: url)
}catch{
print("errrr")
}
}