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Viewer xls and xlsx file format issue



We are evaluating the viewer library and we are getting following issue while using this:
  1. Excel format is getting changed its not showing spreadsheet as in original format. Also the vertical search is not working.
  2. Stream method is not working properly with .doc,.docx and text while the streams is working with all.
  3. Large file is taking to much time to load and some time throwing run-time error.
Please provide the solution for above mentioned issues.


Hello Sumit,

We are sorry to hear that you have such issue.

1. We need the document where rendering distortions were observed. Also it is not clear what you mean under “vertical search” and how this function should work.
2. This was handled via Live Chat.
3. Please report us these exceptions, we will investigate them. There is also a set of tips which can increase performance. First of all, try to use HTML-rendering mode (GroupDocs.Viewer 2.0 – Enhancements and New Features in the Document Viewer for .NET Library (Part A) , section “HTML-Based Rendering Mode”). Second tip is to use “PreloadPagesCount(1)” method. When using this method GroupDocs.Viewer will begin to load document to the client-side when first page of the document will be converted. When this method is not used, GroupDocs.Viewer converts all pages of a document and only then sends it to the client-side. Also, if this is possible for your business-logic, you can disable thumbnails (“ShowThumbnails(false)”) - this will increase performance too.

If you will have more questions please feel free to contact us.