Cannot open a encrypted doc on i mac but opens on i pad

cannot open a encrypted doc on i mac but opens on i pad

Hi, what was it encrypted by or on?

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Excel does not use the .xcl extension for any of its native file formats? The only files I've ever seen with xcl as the file extension were associated with embedded application code projects.
If this is in fact an Excel file, but an encrypted one, you cannot open it (in excel or any compatible application) without the decryption password.

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Why are my received file attachments (Office files such as .doc, .docx, .xlsx but also pdf files) corrupted - so that I cannot open them?

For the last month, 90% of the file attachments that I receive by email will not open on my MacBook Pro (2009, running Mac OS 10.7.5). I get assorted messages, but generally saying that the file is corrupt, or the filename contains unacceptable characters. The problem has been generally with Word files (.doc and .docx)], Excel files (.xls and .xlsx) and pdf files.
The bit that I don't understand is that I can open the same email attachments (without any problem) when downloaded on my iMac. And I have recently found that colleagues who received the same emails can open them, and can transfer the files to me (usually by USB stick) … and then I can open them. But I still cannot open the same files received as email attachments on my MacBook Pro.
Which makes me think that the files (email attachments) are somehow being corrupted as they are downloaded?
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I opened one of the PDF files in notepad and these are the first couple lines:
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I just moved all my files to a new laptop with Windows 7. I was using Excel 2007 and Windows XP on the OLD laptop. The NEW laptop has Windows 7 Ultimate and Excel 2010. I turned on file encryption (via Windows File Explorer) and now I'm
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The error message says: "Excel cannot open the file 'ABC.xlsx' because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file."
I can open the file just fine if I use the backup version from the old laptop. It appears that the Windows 7 file encryption damaged the file from Excel's perspective. No other applications are showing issues and not all .xlsx files are failing.
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This is not a solution but a possible work around to see/salvage the contents of your file. If you have a Google Account
Go to Google Docs (https://docs.google.com)
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Upload the troublesome files (xlsx, docx etc)
If you are lucky Google may be able to salvage their contents.
Once uploaded, you can always download the file from Google in a variety of formats

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Pages '08/'09 in your Applications/iWork folder which can not open Pages 5 files.
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Peter

Cannot open a encrypted doc on i mac but opens on i pad

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