The file format and the extension of filename.xls don't match. This file could be corrupted and unsafe












1















I had made a PHP script to output an excel(.xls) document from data extracted from MySQL database.



Exporting function is working fine.



The problem is when i open it on MS Excel it shows me following message before opening the file.



The file format and the extension of filename.xls don't match. This file could be corrupted and unsafe...



can you help me to resolve this warning message issue?



excel warning message:



excel warning message



array to be exported to excel:




array to be exported to excel




exported file:




exported file











share|improve this question





























    1















    I had made a PHP script to output an excel(.xls) document from data extracted from MySQL database.



    Exporting function is working fine.



    The problem is when i open it on MS Excel it shows me following message before opening the file.



    The file format and the extension of filename.xls don't match. This file could be corrupted and unsafe...



    can you help me to resolve this warning message issue?



    excel warning message:



    excel warning message



    array to be exported to excel:




    array to be exported to excel




    exported file:




    exported file











    share|improve this question



























      1












      1








      1








      I had made a PHP script to output an excel(.xls) document from data extracted from MySQL database.



      Exporting function is working fine.



      The problem is when i open it on MS Excel it shows me following message before opening the file.



      The file format and the extension of filename.xls don't match. This file could be corrupted and unsafe...



      can you help me to resolve this warning message issue?



      excel warning message:



      excel warning message



      array to be exported to excel:




      array to be exported to excel




      exported file:




      exported file











      share|improve this question
















      I had made a PHP script to output an excel(.xls) document from data extracted from MySQL database.



      Exporting function is working fine.



      The problem is when i open it on MS Excel it shows me following message before opening the file.



      The file format and the extension of filename.xls don't match. This file could be corrupted and unsafe...



      can you help me to resolve this warning message issue?



      excel warning message:



      excel warning message



      array to be exported to excel:




      array to be exported to excel




      exported file:




      exported file








      php phpexcel export-to-excel






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jan 2 at 5:57









      Panda

      6,31462844




      6,31462844










      asked Jan 1 at 12:45









      Chandimal FernandoChandimal Fernando

      84




      84
























          1 Answer
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          0














          you may change the extension to .xlsx, as MS Office 2013 or newer versions expects that as standard. Also try to use exact mime type when exported from php. you may search for mime types and test which meets your office installation.






          share|improve this answer
























          • I used .xlsx extension but it didn't resolve that issue.

            – Chandimal Fernando
            Jan 3 at 5:27











          • Can you upload one excel file here? That will help diagnosis.

            – Ayan_84
            Jan 3 at 5:55











          • how can i upload a file here?

            – Chandimal Fernando
            Jan 4 at 12:06











          • upload to any free file sharing or google drive and share the link

            – Ayan_84
            Jan 4 at 15:54











          • drive.google.com/open?id=1kRob9OI5dZzxmcxm9Y-K5JcxORhEPyz6

            – Chandimal Fernando
            Jan 7 at 4:05











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          active

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          0














          you may change the extension to .xlsx, as MS Office 2013 or newer versions expects that as standard. Also try to use exact mime type when exported from php. you may search for mime types and test which meets your office installation.






          share|improve this answer
























          • I used .xlsx extension but it didn't resolve that issue.

            – Chandimal Fernando
            Jan 3 at 5:27











          • Can you upload one excel file here? That will help diagnosis.

            – Ayan_84
            Jan 3 at 5:55











          • how can i upload a file here?

            – Chandimal Fernando
            Jan 4 at 12:06











          • upload to any free file sharing or google drive and share the link

            – Ayan_84
            Jan 4 at 15:54











          • drive.google.com/open?id=1kRob9OI5dZzxmcxm9Y-K5JcxORhEPyz6

            – Chandimal Fernando
            Jan 7 at 4:05
















          0














          you may change the extension to .xlsx, as MS Office 2013 or newer versions expects that as standard. Also try to use exact mime type when exported from php. you may search for mime types and test which meets your office installation.






          share|improve this answer
























          • I used .xlsx extension but it didn't resolve that issue.

            – Chandimal Fernando
            Jan 3 at 5:27











          • Can you upload one excel file here? That will help diagnosis.

            – Ayan_84
            Jan 3 at 5:55











          • how can i upload a file here?

            – Chandimal Fernando
            Jan 4 at 12:06











          • upload to any free file sharing or google drive and share the link

            – Ayan_84
            Jan 4 at 15:54











          • drive.google.com/open?id=1kRob9OI5dZzxmcxm9Y-K5JcxORhEPyz6

            – Chandimal Fernando
            Jan 7 at 4:05














          0












          0








          0







          you may change the extension to .xlsx, as MS Office 2013 or newer versions expects that as standard. Also try to use exact mime type when exported from php. you may search for mime types and test which meets your office installation.






          share|improve this answer













          you may change the extension to .xlsx, as MS Office 2013 or newer versions expects that as standard. Also try to use exact mime type when exported from php. you may search for mime types and test which meets your office installation.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Jan 2 at 6:00









          Ayan_84Ayan_84

          510412




          510412













          • I used .xlsx extension but it didn't resolve that issue.

            – Chandimal Fernando
            Jan 3 at 5:27











          • Can you upload one excel file here? That will help diagnosis.

            – Ayan_84
            Jan 3 at 5:55











          • how can i upload a file here?

            – Chandimal Fernando
            Jan 4 at 12:06











          • upload to any free file sharing or google drive and share the link

            – Ayan_84
            Jan 4 at 15:54











          • drive.google.com/open?id=1kRob9OI5dZzxmcxm9Y-K5JcxORhEPyz6

            – Chandimal Fernando
            Jan 7 at 4:05



















          • I used .xlsx extension but it didn't resolve that issue.

            – Chandimal Fernando
            Jan 3 at 5:27











          • Can you upload one excel file here? That will help diagnosis.

            – Ayan_84
            Jan 3 at 5:55











          • how can i upload a file here?

            – Chandimal Fernando
            Jan 4 at 12:06











          • upload to any free file sharing or google drive and share the link

            – Ayan_84
            Jan 4 at 15:54











          • drive.google.com/open?id=1kRob9OI5dZzxmcxm9Y-K5JcxORhEPyz6

            – Chandimal Fernando
            Jan 7 at 4:05

















          I used .xlsx extension but it didn't resolve that issue.

          – Chandimal Fernando
          Jan 3 at 5:27





          I used .xlsx extension but it didn't resolve that issue.

          – Chandimal Fernando
          Jan 3 at 5:27













          Can you upload one excel file here? That will help diagnosis.

          – Ayan_84
          Jan 3 at 5:55





          Can you upload one excel file here? That will help diagnosis.

          – Ayan_84
          Jan 3 at 5:55













          how can i upload a file here?

          – Chandimal Fernando
          Jan 4 at 12:06





          how can i upload a file here?

          – Chandimal Fernando
          Jan 4 at 12:06













          upload to any free file sharing or google drive and share the link

          – Ayan_84
          Jan 4 at 15:54





          upload to any free file sharing or google drive and share the link

          – Ayan_84
          Jan 4 at 15:54













          drive.google.com/open?id=1kRob9OI5dZzxmcxm9Y-K5JcxORhEPyz6

          – Chandimal Fernando
          Jan 7 at 4:05





          drive.google.com/open?id=1kRob9OI5dZzxmcxm9Y-K5JcxORhEPyz6

          – Chandimal Fernando
          Jan 7 at 4:05




















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