1. To modify the directories (folders) that are indexed by X1, the level of indexing, and to specify network drives to be indexed you can customize the settings within X1 by clicking on Tools > Options > Files > Select Files To Scan
2. Inside the "Indexing Options", you can define which drives/folders are indexed by X1. The "Choose A Folder" tree allows you to set each drive for indexing. The legend on the right explains the available settings.
3. Set specific extensions to be indexed for content by clicking the "Specify File Types" button, and add desired extensions in the window.
At the bottom of the File Indexing Options window is a setting labeled "Maximum File Size for content indexing." This setting defines what gets indexed for content based on size. By default, it is set to 60MB - so any files larger than 60MB will not be indexed for content. You may need to set this to a higher number that accommodates your files. However, 60MB should cover most files.
After you make any changes, click the OK button to save your settings and return to the main options window.
Please Note: You will need to update your index for any setting changes to take effect. You can do this on the Tools > Options > Files screen by clicking "Index Files Now".)