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QWERTYkez.ExcelProcessor/IExcelReader.cs

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+namespace QWERTYkez.ExcelProcessor;
+
+public interface IExcelReader
+{
+    long DocumentSize { get; }
+    string? FilePath { get; }
+    bool IsValid { get; }
+
+    ISet<string> FindPlaceholders();
+
+
+    bool TryWrite(string destinationPath, Action<IExcelWriter> action);
+    bool TryWrite(Action<IExcelWriter> write, Action<IExcelReader> read);
+}