Fix-convert-V2 (#5147)

Custom processors can now return consume all inputs flag. This allows to
have many inputs to single output consumption

Fixed multi call conversion logic

frontend/src/core/utils/convertUtils.ts

@@ -60,6 +60,18 @@ export const isWebFormat = (extension: string): boolean => {
   return ['html', 'zip'].includes(extension.toLowerCase());
 };
 
+/**
+ * Checks if the given extension is an office format (Word, Excel, PowerPoint, OpenOffice)
+ * These formats use LibreOffice for conversion and require individual file processing
+ */
+export const isOfficeFormat = (extension: string): boolean => {
+  return [
+    'docx', 'doc', 'odt',  // Word processors
+    'xlsx', 'xls', 'ods',  // Spreadsheets
+    'pptx', 'ppt', 'odp'   // Presentations
+  ].includes(extension.toLowerCase());
+};
+
 /**
  * Gets available target extensions for a given source extension
  * Extracted from useConvertParameters to be reusable in automation settings