ios - UIWebview - could not open the password protected .xlsx,.docx and .ppt -

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i have tried open (using loaddata/loadrequest methods of webview) password protected files in web view controller. can open password protected pdf , zip files. works fine. when tried open other password protected files shows error.

(unable read document).

if have tried open file in safari, there getting same error. works fine in ipad mail native app.

please guide me. problem ?

whenever have tried open password protected pdf/ppt files , return below exception

**exception sfuzipendofcentraldirectoryerror: not find end of central directory record**

through uiwebview , cannot open password protected files except pdf. if want open password protected files, use qlpreviewcontroller. work perfectly


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