How to convert .dot file to .docm using MS office 2010 library in C#.NET programming

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Hi,

I have to write a code in C#.NET which uses MS Office 2010 library and takes input as .dot file and convert it to .dotm or .docm. Please help me out.

Posted 21-Oct-15 21:05pm

rahulsri19

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Comments

Richard MacCutchan 22-Oct-15 4:03am

Help with what? And surely it would be simpler to use MS Word to do the job for you.

rahulsri19 22-Oct-15 4:13am

Hey...I tried with this code:

string dotFileName = @"C:\MyFile.dot";
string docmFileName = @"C:\Test.docm";
_Application myWordApp = new Application();
_Document myDoc = myWordApp.Documents.Open(FileName: dotFileName, ReadOnly: true);
myDoc.SaveAs2(FileName: docmFileName, FileFormat: WdSaveFormat.wdFormatTemplate, CompatibilityMode: WdCompatibilityMode.wdWord2010);

myDoc.Close();
myWordApp.Quit();

But its not working. Gives run time error. This code works fine when we run to convert from doc to docx and set WdSaveFormat.wdFormatDocumentDefault. I played with different options but failed.

Richard MacCutchan 22-Oct-15 4:57am

Gives run time error
What error?

rahulsri19 22-Oct-15 5:29am

ComException was unhandled
Incompatible file type and file extension

Richard MacCutchan 22-Oct-15 5:49am

OK, so now you know what is wrong.

rahulsri19 22-Oct-15 5:54am

I know some setting needs to be corrected when passing value to myDoc.SaveAs2, but don't know the correct one.

Richard MacCutchan 22-Oct-15 6:04am

The error tells you what is wrong so you need to change either the type or extension in order to correct it.

rahulsri19 22-Oct-15 7:48am

Something is wrong here. It looks like code is not a valid one.

3 solutions

Solution 1

A .dot is a template file. You do not convert templates to documents. You use a template to create a new document and the template does not change.

See the Add method of Documents, https://msdn.microsoft.com/en-us/library/microsoft.office.interop.word.documents.add.aspx[^]. Notice how you pass in the name of the template to use for your new document.

Posted 22-Oct-15 3:04am

ZurdoDev

Solution 2

If you're able to create document nased on template, all you need to do now is to use Document.SaveAs method[^] with proper FileFormat (WdSaveFormat)[^] as an argument of method.

Posted 22-Oct-15 3:15am

Maciej Los

Comments

rahulsri19 22-Oct-15 10:47am

Can you please provide me sample code?

Maciej Los 22-Oct-15 14:37pm

Is there something unclear? SaveAs takes no. of parameters, which you have to pass into it. Try!

rahulsri19 26-Oct-15 7:02am

I used below code but still the file generated giving error: "Word was unable to read this document. It may be corrupt."

oDoc.SaveAs(FileName: dotmFileName, FileFormat: WdSaveFormat.wdFormatFlatXMLTemplateMacroEnabled);

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rahulsri19 · Accepted Answer · 2015-10-26T02:42:00

Got the solution:

string docFileName = @"C:\MyFolder\Test.dot";
string dotmFileName = @"C:\MyFolder\Test.dotm";
_Application myWordApp = new Application();
_Document myDoc = myWordApp.Documents.Open(FileName: docFileName, ReadOnly: true);

myDoc.SaveAs2(FileName: dotmFileName, FileFormat:WdSaveFormat.wdFormatXMLTemplateMacroEnabled);
myDoc.Close();
myWordApp.Quit();