Title: Invalid File Error?
Last modified: May 17, 2017

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# Invalid File Error?

 *  [DR1665](https://wordpress.org/support/users/dr1665/)
 * (@dr1665)
 * [9 years ago](https://wordpress.org/support/topic/invalid-file-error/)
 * Hi. I love the potential of this plugin and hope you can help me get it working.
 * I keep getting the following error. Can you point me in the right direction?
   
   Thanks in advance.
 * (Below error copied from attempt at exporting a single post.)
 * **Invalid File!
    Warning: Cannot modify header information – headers already 
   sent
    by (output started at [redacted]/wp-content/plugins/aspose-doc-exporter/
   aspose_doc_exporter_admin.php:285) in [redacted]/wp-content/plugins/aspose-doc-
   exporter/aspose_doc_exporter_admin.php on line 293
 * **Warning: Cannot modify header information – headers already sent** by (output
   started at [redacted]/wp-content/plugins/aspose-doc-exporter/aspose_doc_exporter_admin.
   php:285) in [redacted]/wp-content/plugins/aspose-doc-exporter/aspose_doc_exporter_admin.
   php on line 295
 * **Warning: filesize(): stat failed** for [redacted]/wp-content/uploads/2017/05/
   exported-documents.zip in [redacted]/wp-content/plugins/aspose-doc-exporter/aspose_doc_exporter_admin.
   php on line 297
 * **Warning: Cannot modify header information – headers already sent** by (output
   started at [redacted]/wp-content/plugins/aspose-doc-exporter/aspose_doc_exporter_admin.
   php:285) in [redacted]/wp-content/plugins/aspose-doc-exporter/aspose_doc_exporter_admin.
   php on line 297
 * **Warning: readfile([redacted]/wp-content/uploads/2017/05/exported-documents.
   zip): failed to open stream: No such file or directory** in [redacted]/wp-content/
   plugins/aspose-doc-exporter/aspose_doc_exporter_admin.php on line 299

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## Tags

 * [errors](https://wordpress.org/support/topic-tag/errors/)
 * [invalid file](https://wordpress.org/support/topic-tag/invalid-file/)

 * 0 replies
 * 1 participant
 * Last reply from: [DR1665](https://wordpress.org/support/users/dr1665/)
 * Last activity: [9 years ago](https://wordpress.org/support/topic/invalid-file-error/)
 * Status: not resolved