123 file extension is used by documents created with Lotus 1-2-3 software. What type of data 123 files store? Files with 123 extension can contain various types of documents. Lotus 1-2-3 is capable of creating text documents with embedded graphics, spreadsheets, or database files.
Files with the .XLSX extension contain spreadsheets compressed in ZIP format, stored in an open format based on XML – Office Open XML. It was introduced into Microsoft Office suite since its 2007 version, in order to provide higher format portability.
After converting the file to the new format, you will be able to use other programs to support it. Keep in mind, however, that the 123 file after converting to XLSX may differ slightly from the original. The most important information should be kept, but if you want the file after conversion from 123 to XLSX to be the same, you have to do this carefully and choose the proper application from the list below.
There is no guarantee, of course, that the conversion will come up to all your expectations, but it will certainly help you. If, after all, the effect of converting 123 to XLSX does not meet your expectations, you can simply try to find on the Internet a different version of your file in 123 format, properly converted to a XLSX file by someone else. If this fails, use the information provided in the further part of the website.
If after converting the file 123 the desired result was not achieved, you can try to change the format of 123 file to other than XLSX. On our website you will find more information on the following conversion options
Unfortunately, if after performing the two previously described steps (trying to find your 123 file converted by someone else, and the attempt to convert it to XLSX on your own) you still have a problem with your file, then there are only a few solutions left. You can once again try to find and install an application that can open the 123 file in its original format (without conversion to XLSX file). Such a solution will be difficult to implement, but it certainly will give the best result.