Convert XLSX to XLS
You got an XLSX file that was created using Microsoft Office 2007 but unfortunately you cannot open it because you have an older version of Microsoft Office installed on your computer that can only handle XLS files and not XLSX files.
So, how do you convert XLSX to XLS so that you can open the XLS spreadsheet file and edit it in older versions of MS Excel? Here’s a step-by-step guide on how you can go about converting XLSX to XLS:
Download the Microsoft Office Compatibility Pack for Excel 2007 from here (27 MB) and double click FileFormatConverters.exe. Accept the license agreements and click Continue.

The installation of the XLSX to XLS converter begins. A confirmation is displayed when the installation is complete.

Double click on the file that has to be converted from the XLSX to XLS format. Otherwise, right click, select ‘Open With’ and choose ‘Microsoft Open XML Converter’. Give a name for the XLS file and then click the Save button.

The XLSX to XLS conversion process begins, and the new XLS file is saved in the location you specified.

The XLSX to XLS conversion is complete.
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ho ho ho
roman
19 Jun 09 at 4:23 pm
hy my friends….
roman
19 Jun 09 at 4:24 pm
thank you, thank you..that was easy, crystal clear instruction that really worked….thoroughly impressed.
thanks
rosie
8 Jul 09 at 12:10 pm
or you could dl OpenOffice.org which will read all of those no matter what version.
alienclone
9 Sep 09 at 3:08 am
anyone knows the commandline to convert xlsx files to xls files using this convertor utility, as far as i know these 2 executables are involved in conversion
moc0.exe
excelcnv.exe
i would really appreciate if someone tell me how to do it
damon
14 Sep 09 at 6:53 pm
I’ve perform all steps up to “Double click on the file that has to be converted from the XLSX to XLS format.”, and I’m getting a “Save as” error window saying, “The converter failed to save the file.”. What now?
THANKS in advance.
=Jim=
Jim
30 Sep 09 at 8:46 pm
Yes this is rite way ….
Degree Online
24 Oct 09 at 6:52 am
I too am getting a “Save as” error window saying, “The converter failed to save the file.”. What now?
Cameron
20 Nov 09 at 11:55 pm
“Save as” error states that a *.misC file is in the wrong format. Congratulations Microsoft. You have yet again dissapointed us with your failed attempts to fix a broken system with another broken “bandaid”.
H. McCartney
25 Nov 09 at 5:44 pm
Very usefull, very easy, very fast.
thanks alot.
you really helped me
Robert
24 Dec 09 at 5:47 pm
zamzar.com
dd
13 Jan 10 at 3:09 pm
How about getting open office? much easier to use.
Microsoft's antagonist
4 Feb 10 at 6:16 pm
How about open office row limit is far below Excel 2007s.
Making it utterly useless to use against large xlsx files.
Open?
8 Feb 10 at 7:17 pm
How about open office row limit is far below Excel 2007s.
Making it utterly useless to use for large xlsx files.
Open?
8 Feb 10 at 7:18 pm
How does one find the Microsoft Open XML Converter if it’s not given in the list of “open with” programs? I can’t find it anywhere on my hard drive.
Erik
9 Feb 10 at 12:05 am
Erik answer to your question … to find the Microsoft Open XML Converter… you will have to brows first and then… under programs files–> Microsftoffice –>OFfice12–> MOC. choose moc,,,and there u r done………. i had the same trouble finding it.. but not its good
manisha
16 Feb 10 at 9:04 pm
this didn’t work
I have downloaded the fileformatconverter three times and installed to no avail.
what else might you suggest?
RAY
24 Feb 10 at 12:12 am
Nice software. I already use. It so much help me.
Main Uddin
1 Mar 10 at 1:44 pm
Thank you so very much for this information. It worked perfectly and really saved my butt! LOL! (Not to be crude or anything) But it was a great help. THANKS! I will certainly pass on to others!
Wendy
5 Mar 10 at 12:55 am
Nice…It worked! Thanks mate!
Amaresh
8 Mar 10 at 11:12 am