| Issue | Typical Cause | Solution | |-------|---------------|----------| | System.IO.FileNotFoundException for interop assembly | PIA not installed on build machine | Install Office 2013 with .NET Programmability Support | | Excel process remains in Task Manager after quitting | COM objects not released properly | Use Marshal.ReleaseComObject and call GC.Collect() (carefully) | | System.Runtime.InteropServices.COMException (0x800A03EC) | Invalid range or formula | Check cell references, sheet protection, or Excel version limitations | | Method missing at runtime | Using feature from Excel 2013 on Excel 2010 | Downgrade interop reference or use late binding | | Performance is very slow | Frequent cell access via Range.Value | Use Range.Value = object[,] for bulk reads/writes |
However, Open XML cannot Excel macros or formulas – it only manipulates the underlying XML structure of .xlsx files. microsoft.office.interop.excel version 15.0.0.0
| Component | Requirement | |-----------|-------------| | | 3.5 SP1, 4.0, 4.5, 4.5.1, 4.6+ | | Excel Version | Excel 2013 (or later with down-level support) | | OS | Windows 7 SP1, Windows 8, 8.1, 10, 11, Server 2008 R2+ | | PIA Installation | Office 2013 setup installs PIAs by default (customizable) | | Issue | Typical Cause | Solution |