The Syncfusion native Blazor components library offers 70+ UI and Data Viz web controls that are responsive and lightweight for building modern web apps.
.NET PDF framework is a high-performance and comprehensive library used to create, read, merge, split, secure, edit, view, and review PDF files in C#/VB.NET.
Regarding text extract in Excel: Yes, you can get text from a range in a Excel worksheet by usingDisplayTextproperty. Please refer the following code example to get the text from a cell in XlsIO.
Regarding text extract in PowerPoint: In Presentation library, we don’t have a unique API available to extract text from a slide or an entire presentation. But we do have API’s to get the shape’s text within a slide. We have created a sample as a work around, please download the sample from the link below and please check if it could satisfy your requirement.