Come verificare se due file sono uguali?

Creating a File Signature

It is possible to create a signature that "summarizes" the content of a file by finding the file’s hash. If two file signatures are identical, it indicates that the content of the two files is identical. The command C:\TEMP\file1.exe allows you to calculate and display the SHA-256 hash of the file.

Comparing Two Files

To compare two files, follow these steps:

1. Select one of the two document versions to compare.
2. Choose "Revisions" from the Tools menu and click on "Compare Documents."
3. From the list of original documents, select the original document.
4. In the list of modified documents, go to the other version of the document and click "OK."

Viewing the Content of Two Excel Files Together

You can use the following steps to compare the content of two Excel files:

1. Click on "Home" and select "Compare Files."
2. The "Compare Files" dialog box will appear.
3. To access the location of the previous version of the workbook, click on the blue folder icon next to the Compare box.

Comparing Two PDF Files

Here’s how to compare two PDF files:

1. Click on "Tools" and then "Compare Files."
2. To choose the previous version of the file to compare, click on "Select file" on the left.
3. Click on "Change file" and choose a file that is already open or find and select the file you want.

Comparing Files and Folders Using Windows

You can compare files and folders on Windows using the following method:
A free and popular program called WinMerge, available in Italian and open source, allows you to merge folders and delete duplicates.

Comparing Two TXT Files

To compare two files, search for "file comparison" or "diff" on Google. Diffchecker, a web application that allows you to compare text files without installing programs on your computer, is the first result.

Comparing Different Documents Using Excel

To view and compare linked documents:

• Open the two files to compare.
• Click on "Arrange" in the Window group on the View tab. Note: Click on "Scroll" to scroll both documents simultaneously in the Window subgroup of the View tab.

The Usefulness of WinMerge

WinMerge is a free program that can be used to find differences and merge text files. It is useful for finding differences between different versions of the same file and then merging the various versions. The latest stable version of WinMerge is 2.16.4 as of July 2019.

Using Microsoft Excel to Compare Two Columns and Return Values in the Third Column

You can use a useful function in Microsoft Excel to compare two columns and retrieve values in the third column. Here’s how:

• Select the "Lookup" option from the drop-down list of formula types.
• Then, in the "Choose a formula" summary box, select the "Look up a value" option from the list.

Comparing Two Excel Files with Conditional Formatting

Select all the populated cells in the sheet you want to highlight. A quick solution is to click on the cell in the top-left corner and use the Ctrl + Shift + End shortcut. Then, go to "Home," then "Conditional Formatting," and then "New Rule."