ALCO file format description

Many people often share .alco files without providing instructions on how to use them. This can make it difficult for users to determine which program is compatible for editing, converting, or printing .alco files. To address this issue, we have created this page to offer assistance and guidance on handling .alco files. We provide information on compatible software, editing instructions and conversion options to help users effectively interact with .alco files.

Our aim is to simplify the process and promote seamless use of the .alco file format.

1 filename extension(s) found in our database.

.alco - URL Manager Pro Data

The ALCO data files are related to URL Manager Pro. The ALCO file is a URL Manager Pro Data. URL Manager Pro is a bookmark manager for Safari, Explorer, OmniWeb, Mozilla, Netscape, iCab, Camino, and Epic browsers.

URL Manager Pro
Data files
- / -
URL Manager Pro Data related extensions:
Open Virtualization Format Data
Cadence Input-output Connectors Data
Stitch Vista Condensed Data
Oracle Hyperion Interactive Reporting Document
ProVoc Database
Microsoft Exchange Server Form Message Data

Naturally, other applications may also use the .alco file extension. Even harmful programs can create .alco files. Be especially cautious with .alco files coming from an unknown source!

Can't open a .alco file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .alco file extension is often given incorrectly!

Based on searches conducted on our site in the past year, we have compiled a list of the most common misspellings. These frequent misspellings can cause confusion and hinder search accuracy. By providing this list, we aim to assist users in finding the correct information more easily and improving their overall search experience on our site.

These misspellings were the most common in the past year:

aco, alc, alo, lco

Is it possible that the filename extension is misspelled?

There is a possibility that the .alco filename extension is misspelled. To assist users in identifying potential errors, we provide a list of similar file extensions in our database.

Filename extensions similar to .alco:

Alteryx Designer Allocate License Data
Adobe Photoshop Custom Swatch
Alchemy Format Data
CYANA Dihedral Angle Constraint File
Norton Internet Security AD Server Data

Operating systems

At, we strive to provide a seamless user experience by ensuring compatibility with a wide range of operating systems. The following is a comprehensive list of the operating systems currently supported by

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.

If you have useful information about the .alco file format, then write to us! >> ALCO file