Vb.net Epplus桌面应用程序-无法确定域的标识

我刚刚将excel互操作代码启动到epplus，并在保存excel文档时执行了该操作，但我无法读取现有文件。我搜索过，但每个结果都与web应用程序相关，我正在开发一个桌面应用程序。 我的代码非常简单：

    Dim File As FileInfo = New FileInfo(DosyaAd)
Using package As New ExcelPackage(File)
    Dim She As ExcelWorksheet
    She = package.Workbook.Worksheets("BF")
End using

我在以下位置收到此错误：She=package.Workbook.Worksheets（“BF”）

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如果此工作簿是在Microsoft Office中或通过互操作生成的，则该工作簿可能包含EPPLus库中不可用的功能，如线条和主题，以及列出的其他功能

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我自己也没有经历过，但我从其他人那里听说，当工作表包含大量内容时，会出现问题。

您好，工作簿只包含文本和数字，其他什么都没有。你能给其他简单实用的库提些建议吗？另外，你有没有试过用EPPlus从不同的Excel文件中读取一些？这可能是文件本身的问题。您是否设法解决了此问题？我有一个类似的我不能出去，任何帮助将不胜感激。

System.IO.IsolatedStorage.IsolatedStorageException was unhandled by user code
  HResult=-2146233264
  Message=Unable to determine the identity of domain.
  Source=mscorlib
  StackTrace:
       at System.IO.IsolatedStorage.IsolatedStorage._GetAccountingInfo(Evidence evidence, Type evidenceType, IsolatedStorageScope fAssmDomApp, Object& oNormalized)
       at System.IO.IsolatedStorage.IsolatedStorage.GetAccountingInfo(Evidence evidence, Type evidenceType, IsolatedStorageScope fAssmDomApp, String& typeName, String& instanceName)
       at System.IO.IsolatedStorage.IsolatedStorage._InitStore(IsolatedStorageScope scope, Evidence domainEv, Type domainEvidenceType, Evidence assemEv, Type assemblyEvidenceType, Evidence appEv, Type appEvidenceType)
       at System.IO.IsolatedStorage.IsolatedStorage.InitStore(IsolatedStorageScope scope, Type domainEvidenceType, Type assemblyEvidenceType)
       at System.IO.IsolatedStorage.IsolatedStorageFile.GetStore(IsolatedStorageScope scope, Type domainEvidenceType, Type assemblyEvidenceType)
       at MS.Internal.IO.Packaging.PackagingUtilities.ReliableIsolatedStorageFileFolder.GetCurrentStore()
       at MS.Internal.IO.Packaging.PackagingUtilities.ReliableIsolatedStorageFileFolder..ctor()
       at MS.Internal.IO.Packaging.PackagingUtilities.GetDefaultIsolatedStorageFile()
       at MS.Internal.IO.Packaging.PackagingUtilities.CreateUserScopedIsolatedStorageFileStreamWithRandomName(Int32 retryCount, String& fileName)
       at MS.Internal.IO.Packaging.SparseMemoryStream.SwitchModeIfNecessary()
       at MS.Internal.IO.Packaging.SparseMemoryStream.Write(Byte[] buffer, Int32 offset, Int32 count)
       at MS.Internal.IO.Packaging.DeflateEmulationTransform.Decompress(Stream source, Stream sink)
       at MS.Internal.IO.Packaging.CompressEmulationStream..ctor(Stream baseStream, Stream tempStream, Int64 position, IDeflateTransform transformer)
       at MS.Internal.IO.Packaging.CompressStream.ChangeMode(Mode newMode)
       at MS.Internal.IO.Packaging.CompressStream.Seek(Int64 offset, SeekOrigin origin)
       at MS.Internal.IO.Zip.ProgressiveCrcCalculatingStream.Seek(Int64 offset, SeekOrigin origin)
       at MS.Internal.IO.Zip.ZipIOModeEnforcingStream.Read(Byte[] buffer, Int32 offset, Int32 count)
       at System.IO.StreamReader.ReadBuffer(Char[] userBuffer, Int32 userOffset, Int32 desiredChars, Boolean& readToUserBuffer)
       at System.IO.StreamReader.Read(Char[] buffer, Int32 index, Int32 count)
       at System.IO.StreamReader.ReadBlock(Char[] buffer, Int32 index, Int32 count)
       at OfficeOpenXml.ExcelWorksheet.GetWorkSheetXml(Stream stream, Int64 start, Int64 end, Encoding& encoding)
       at OfficeOpenXml.ExcelWorksheet.CreateXml()
       at OfficeOpenXml.ExcelWorksheet..ctor(XmlNamespaceManager ns, ExcelPackage excelPackage, String relID, Uri uriWorksheet, String sheetName, Int32 sheetID, Int32 positionID, eWorkSheetHidden hide)
       at OfficeOpenXml.ExcelWorksheets..ctor(ExcelPackage pck, XmlNamespaceManager nsm, XmlNode topNode)
       at OfficeOpenXml.ExcelWorkbook.get_Worksheets()
       at OfficeOpenXml.ExcelWorkbook.GetDefinedNames()
       at OfficeOpenXml.ExcelPackage.get_Workbook()
.........