I am using Microsoft.Office.Interop.Excel to read an excel file and change some cells. It works perfectly with xls files.
I would like to know that, if I deploy the application to the client. They have to install the whole Microsoft Office application? as I think the only dll will not work, right?
Thanks in advance.
Yes, the clients must have Office installed.
I must add a warning, Interop is awkward you better use other (open source) libraries like NPOI or EPPlus for .xlsx- 2007 excel sheets for automation.
Update:
Additional to the awkward of interop, It's unsafe when using in servers!!! see here:
"Microsoft does not currently recommend, and does not support,
Automation of Microsoft Office applications from any unattended,
non-interactive client application or component (including ASP,
ASP.NET, DCOM, and NT Services), because Office may exhibit unstable
behavior and/or deadlock when Office is run in this environment."
If you know there are only .xslx files, you don't need Excel if you use the Open XML Api from Microsoft. It can read Excel files perfectly.
In case were Open XML and Excel interop is not an option, I would recommend Aspose. They have a nice suit of Office compatible components, including for Excel. And they are built for the server. We are using them since 5 years and it works pretty well.
Related
I have developped a program (C shrap) which help schools in archiving there documents, in the program, I am using Microsoft Word, Excel and Access integrations, But I dont know if the target PC will have MS office, so, is there a way to target these PCs without requesting MS office installed?
My references:
Microsoft.Office.Interop.Excel
Microsoft.Office.Interop.word
If you use Interop then you need office install.
I suggest instead using other libraries which don't need Office, such as the openxml sdk.
You can find various examples online on how to do this. Here are a few
https://www.codingame.com/playgrounds/11047/edit-word-documents-using-openxml-and-c-without-automationinterop
https://www.codeproject.com/Articles/87711/Manipulate-Docx-with-C-without-Microsoft-Word-inst
Do we need Office Installation to work with OpenXML?
https://github.com/OfficeDev/Open-XML-SDK
i have to convert a word doc into pdf and print it and Microsoft.Office.interop offers an easy way to do it but client machine has be installed with 2013 or higher.
My question is. is there any way that i could convert the word file into pdf using Server's Microsoft office because i can't expect client have 2013 installed on their pc
if no is there any easy and free way to convert word file into pdf.?
Thanks all
Word Automation Services (part of SharePoint) can convert Word documents to PDF (and other file formats) in the server environment.
It is not recommended to use Office Interop on server.
You can use OpenXML for working with office docs.
There are many examples available here.
For conversion, you will have to use separate plugin, and I'm not aware of a free version to convert to PDF.
I have an application that uses Microsoft.Office.Interop.Excel, when I deploy it on machines where there isn't any version of MS Office I get the following error
I tried installing VSTOR as indicated in this so answer COM object with CLSID {00024500-0000-0000-C000-000000000046} is either not valid or not registered
but this didn't solve the issue.
If you need to work only with open XML documents (*.xslx) you may consider using the Open XML SDK. See Welcome to the Open XML SDK 2.5 for Office for more information.
In case of binary file format you need to use any third-party components that don't required Office/Excel installed on the machine.
Pay special attention to the following fact:
Microsoft does not currently recommend, and does not support, Automation of Microsoft Office applications from any unattended, non-interactive client application or component (including ASP, ASP.NET, DCOM, and NT Services), because Office may exhibit unstable behavior and/or deadlock when Office is run in this environment.
If you are building a solution that runs in a server-side context, you should try to use components that have been made safe for unattended execution. Or, you should try to find alternatives that allow at least part of the code to run client-side. If you use an Office application from a server-side solution, the application will lack many of the necessary capabilities to run successfully. Additionally, you will be taking risks with the stability of your overall solution.
Read more about that in the Considerations for server-side Automation of Office article.
You can't use Microsoft Interop libraries if MS Office is not installed. You might want to look at alternative options to read Excel or Word files. There are many free and (paid) C# libraries you could use for this purpose, for example:
https://exceldatareader.codeplex.com/
https://github.com/ExcelDataReader/ExcelDataReader
You need download and install Microsoft Office {year}: Primary Interop Assemblies - it's free.
I was wondering about the following Scenario:
I developed a C# application, that generates Excel reports based on the Microsoft.Office.Interop.Excel Assemblies and installed the application on a Windows 2003 Server without installed Excel, but I don't get it to work there.
So basicly: Do I Need Office on the machine, where I want to use the above named assemblies or might it be for other reasons?
Thanks in advance for all well meant answers.
Yes, you need to have Excel installed on your server. Also, there are special licensing requirements for this, so please see:
http://support.microsoft.com/kb/257757
do i need to install Microsoft Excel to be able to export xls file in c#,
I have my application it run in my pc but when I test it in another pc that it don't contain
Excel the application got errors !!
I see this link Using Microsoft.Office.Interop.Excel without actually having Excel?, I called my client and he tell me that he use open office and Microsoft office, I can use more than library
Depending on what you need you can use some library (free or commercial) for this:
OpenXML 2.0 from MS
Aspose.Cells (commercial)
Flexcel (commercial)
Create Excel (.XLS and .XLSX) file from C#